diff --git a/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/data/repository/PsychomatrixCeilDescriptionRepository.kt b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/data/repository/PsychomatrixCeilDescriptionRepository.kt
new file mode 100644
index 0000000..c13cb42
--- /dev/null
+++ b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/data/repository/PsychomatrixCeilDescriptionRepository.kt
@@ -0,0 +1,8 @@
+package com.github.insanusmokrassar.PsychomatrixBase.data.repository
+
+import com.github.insanusmokrassar.PsychomatrixBase.domain.entities.CeilDescription
+import com.github.insanusmokrassar.PsychomatrixBase.domain.entities.PsychomatrixCeilInfo
+
+interface PsychomatrixCeilDescriptionRepository {
+    fun getCeilDescription(psychomatrixCeilInfo: PsychomatrixCeilInfo): CeilDescription
+}
diff --git a/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/data/repository/realisations/PsychomatrixCeilDescriptionRepositoryImpl.kt b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/data/repository/realisations/PsychomatrixCeilDescriptionRepositoryImpl.kt
new file mode 100644
index 0000000..7a0554e
--- /dev/null
+++ b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/data/repository/realisations/PsychomatrixCeilDescriptionRepositoryImpl.kt
@@ -0,0 +1,20 @@
+package com.github.insanusmokrassar.PsychomatrixBase.data.repository.realisations
+
+import com.github.insanusmokrassar.PsychomatrixBase.data.repository.PsychomatrixCeilDescriptionRepository
+import com.github.insanusmokrassar.PsychomatrixBase.domain.UseCases.CeilDescriptionUseCase
+import com.github.insanusmokrassar.PsychomatrixBase.utils.extensions.subscribe
+
+abstract class PsychomatrixCeilDescriptionRepositoryImpl(
+    ceilDescriptionUseCase: CeilDescriptionUseCase
+) : PsychomatrixCeilDescriptionRepository {
+    init {
+        ceilDescriptionUseCase.openCeilDescriptionRequestedSubscription().subscribe {
+            getCeilDescription(it).also {
+                description ->
+                ceilDescriptionUseCase.descriptionReady(
+                    it, description
+                )
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/di/PresentationLayerDI.kt b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/di/PresentationLayerDI.kt
index ae472d7..2e25b82 100644
--- a/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/di/PresentationLayerDI.kt
+++ b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/di/PresentationLayerDI.kt
@@ -1,14 +1,15 @@
 package com.github.insanusmokrassar.PsychomatrixBase.di
 
 import com.github.insanusmokrassar.PsychomatrixBase.data.repository.HistoryDatesRepository
-import com.github.insanusmokrassar.PsychomatrixBase.presentation.presenters.DatePickerPresenter
-import com.github.insanusmokrassar.PsychomatrixBase.presentation.presenters.ModifyPsychomatrixPresenter
+import com.github.insanusmokrassar.PsychomatrixBase.data.repository.PsychomatrixCeilDescriptionRepository
+import com.github.insanusmokrassar.PsychomatrixBase.presentation.presenters.*
 
 interface PresentationLayerDI : UseCasesDI {
 
     val datePickerPresenter: DatePickerPresenter
+    val modifyPsychomatrixPresenter: ModifyPsychomatrixPresenter
+    val ceilDescriptionPresenter: CeilDescriptionPresenter
 
     val historyDatesRepository: HistoryDatesRepository
-
-    val modifyPsychomatrixPresenter: ModifyPsychomatrixPresenter
+    val psychomatrixCeilDescriptionRepository: PsychomatrixCeilDescriptionRepository
 }
\ No newline at end of file
diff --git a/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/di/UseCasesDI.kt b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/di/UseCasesDI.kt
index e3a4fb1..debfdf5 100644
--- a/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/di/UseCasesDI.kt
+++ b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/di/UseCasesDI.kt
@@ -1,9 +1,9 @@
 package com.github.insanusmokrassar.PsychomatrixBase.di
 
-import com.github.insanusmokrassar.PsychomatrixBase.domain.UseCases.CalculatePsychomatrixByDateUseCase
-import com.github.insanusmokrassar.PsychomatrixBase.domain.UseCases.ModifyPsychomatrixUseCase
+import com.github.insanusmokrassar.PsychomatrixBase.domain.UseCases.*
 
 interface UseCasesDI : EntitiesDI {
     val calculatePsychomatrixByDateUseCase: CalculatePsychomatrixByDateUseCase
     val modifyPsychomatrixUseCase: ModifyPsychomatrixUseCase
+    val ceilDescriptionUseCase: CeilDescriptionUseCase
 }
\ No newline at end of file
diff --git a/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/di/realisations/PresentationLayerDIImpl.kt b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/di/realisations/PresentationLayerDIImpl.kt
index 8c37b5e..f574b34 100644
--- a/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/di/realisations/PresentationLayerDIImpl.kt
+++ b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/di/realisations/PresentationLayerDIImpl.kt
@@ -2,10 +2,8 @@ package com.github.insanusmokrassar.PsychomatrixBase.di.realisations
 
 import com.github.insanusmokrassar.PsychomatrixBase.di.PresentationLayerDI
 import com.github.insanusmokrassar.PsychomatrixBase.di.UseCasesDI
-import com.github.insanusmokrassar.PsychomatrixBase.presentation.presenters.DatePickerPresenter
-import com.github.insanusmokrassar.PsychomatrixBase.presentation.presenters.DefaultRealisations.DatePickerPresenterImpl
-import com.github.insanusmokrassar.PsychomatrixBase.presentation.presenters.DefaultRealisations.ModifyPsychomatrixPresenterImpl
-import com.github.insanusmokrassar.PsychomatrixBase.presentation.presenters.ModifyPsychomatrixPresenter
+import com.github.insanusmokrassar.PsychomatrixBase.presentation.presenters.*
+import com.github.insanusmokrassar.PsychomatrixBase.presentation.presenters.DefaultRealisations.*
 
 abstract class PresentationLayerDIImpl(
     useCasesDI: UseCasesDI
@@ -17,7 +15,15 @@ abstract class PresentationLayerDIImpl(
         )
     }
 
-    override val modifyPsychomatrixPresenter: ModifyPsychomatrixPresenter = ModifyPsychomatrixPresenterImpl(
-        modifyPsychomatrixUseCase
-    )
+    override val modifyPsychomatrixPresenter: ModifyPsychomatrixPresenter by lazy {
+        ModifyPsychomatrixPresenterImpl(
+            modifyPsychomatrixUseCase
+        )
+    }
+
+    override val ceilDescriptionPresenter: CeilDescriptionPresenter by lazy {
+        CeilDescriptionPresenterImpl(
+            ceilDescriptionUseCase
+        )
+    }
 }
\ No newline at end of file
diff --git a/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/di/realisations/UseCasesDIImpl.kt b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/di/realisations/UseCasesDIImpl.kt
index c7b5128..93b1a54 100644
--- a/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/di/realisations/UseCasesDIImpl.kt
+++ b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/di/realisations/UseCasesDIImpl.kt
@@ -2,10 +2,8 @@ package com.github.insanusmokrassar.PsychomatrixBase.di.realisations
 
 import com.github.insanusmokrassar.PsychomatrixBase.di.EntitiesDI
 import com.github.insanusmokrassar.PsychomatrixBase.di.UseCasesDI
-import com.github.insanusmokrassar.PsychomatrixBase.domain.UseCases.CalculatePsychomatrixByDateUseCase
-import com.github.insanusmokrassar.PsychomatrixBase.domain.UseCases.ModifyPsychomatrixUseCase
-import com.github.insanusmokrassar.PsychomatrixBase.domain.interactors.CalculatePsychomatrixByDateUseCaseInteractor
-import com.github.insanusmokrassar.PsychomatrixBase.domain.interactors.ModifyPsychomatrixUseCaseInteractor
+import com.github.insanusmokrassar.PsychomatrixBase.domain.UseCases.*
+import com.github.insanusmokrassar.PsychomatrixBase.domain.interactors.*
 
 open class UseCasesDIImpl(
     entitiesDI: EntitiesDI
@@ -17,4 +15,8 @@ open class UseCasesDIImpl(
     override val modifyPsychomatrixUseCase: ModifyPsychomatrixUseCase by lazy {
         ModifyPsychomatrixUseCaseInteractor()
     }
+
+    override val ceilDescriptionUseCase: CeilDescriptionUseCase by lazy {
+        CeilDescriptionInteractor()
+    }
 }
diff --git a/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/domain/UseCases/CeilDescriptionUseCase.kt b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/domain/UseCases/CeilDescriptionUseCase.kt
new file mode 100644
index 0000000..ca18674
--- /dev/null
+++ b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/domain/UseCases/CeilDescriptionUseCase.kt
@@ -0,0 +1,17 @@
+package com.github.insanusmokrassar.PsychomatrixBase.domain.UseCases
+
+import com.github.insanusmokrassar.PsychomatrixBase.domain.entities.CeilDescription
+import com.github.insanusmokrassar.PsychomatrixBase.domain.entities.PsychomatrixCeilInfo
+import kotlinx.coroutines.experimental.channels.ReceiveChannel
+
+typealias CeilDescriptionReady = Pair<PsychomatrixCeilInfo, CeilDescription>
+
+interface CeilDescriptionUseCase {
+    fun openCeilDescriptionReadySubscription(): ReceiveChannel<CeilDescriptionReady>
+
+    fun openCeilDescriptionRequestedSubscription(): ReceiveChannel<PsychomatrixCeilInfo>
+
+    fun descriptionReady(psychomatrixCeilInfo: PsychomatrixCeilInfo, ceilDescription: CeilDescription)
+
+    fun requestDescription(psychomatrixCeilInfo: PsychomatrixCeilInfo)
+}
\ No newline at end of file
diff --git a/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/domain/entities/CeilDescription.kt b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/domain/entities/CeilDescription.kt
new file mode 100644
index 0000000..aafd069
--- /dev/null
+++ b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/domain/entities/CeilDescription.kt
@@ -0,0 +1,3 @@
+package com.github.insanusmokrassar.PsychomatrixBase.domain.entities
+
+typealias CeilDescription = String
\ No newline at end of file
diff --git a/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/domain/interactors/CeilDescriptionInteractor.kt b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/domain/interactors/CeilDescriptionInteractor.kt
new file mode 100644
index 0000000..1da31a0
--- /dev/null
+++ b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/domain/interactors/CeilDescriptionInteractor.kt
@@ -0,0 +1,42 @@
+package com.github.insanusmokrassar.PsychomatrixBase.domain.interactors
+
+import com.github.insanusmokrassar.PsychomatrixBase.domain.UseCases.CeilDescriptionReady
+import com.github.insanusmokrassar.PsychomatrixBase.domain.UseCases.CeilDescriptionUseCase
+import com.github.insanusmokrassar.PsychomatrixBase.domain.entities.CeilDescription
+import com.github.insanusmokrassar.PsychomatrixBase.domain.entities.PsychomatrixCeilInfo
+import com.github.insanusmokrassar.PsychomatrixBase.utils.extensions.SUBSCRIPTIONS_EXTRA_SMALL
+import com.github.insanusmokrassar.PsychomatrixBase.utils.extensions.SUBSCRIPTIONS_SMALL
+import kotlinx.coroutines.experimental.channels.BroadcastChannel
+import kotlinx.coroutines.experimental.channels.ReceiveChannel
+import kotlinx.coroutines.experimental.launch
+
+class CeilDescriptionInteractor : CeilDescriptionUseCase {
+    private val ceilDescriptionReadyBroadcastChannel = BroadcastChannel<CeilDescriptionReady>(
+        SUBSCRIPTIONS_SMALL
+    )
+    private val ceilDescriptionRequestedBroadcastChannel = BroadcastChannel<PsychomatrixCeilInfo>(
+        SUBSCRIPTIONS_EXTRA_SMALL
+    )
+
+    override fun openCeilDescriptionReadySubscription(): ReceiveChannel<CeilDescriptionReady> {
+        return ceilDescriptionReadyBroadcastChannel.openSubscription()
+    }
+
+    override fun openCeilDescriptionRequestedSubscription(): ReceiveChannel<PsychomatrixCeilInfo> {
+        return ceilDescriptionRequestedBroadcastChannel.openSubscription()
+    }
+
+    override fun descriptionReady(psychomatrixCeilInfo: PsychomatrixCeilInfo, ceilDescription: CeilDescription) {
+        launch {
+            ceilDescriptionReadyBroadcastChannel.send(psychomatrixCeilInfo to ceilDescription)
+        }
+    }
+
+    override fun requestDescription(psychomatrixCeilInfo: PsychomatrixCeilInfo) {
+        launch {
+            ceilDescriptionRequestedBroadcastChannel.send(
+                psychomatrixCeilInfo
+            )
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/presentation/presenters/CeilDescriptionPresenter.kt b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/presentation/presenters/CeilDescriptionPresenter.kt
new file mode 100644
index 0000000..256b147
--- /dev/null
+++ b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/presentation/presenters/CeilDescriptionPresenter.kt
@@ -0,0 +1,9 @@
+package com.github.insanusmokrassar.PsychomatrixBase.presentation.presenters
+
+import com.github.insanusmokrassar.PsychomatrixBase.domain.entities.CeilDescription
+import com.github.insanusmokrassar.PsychomatrixBase.domain.entities.PsychomatrixCeilInfo
+import kotlinx.coroutines.experimental.Deferred
+
+interface CeilDescriptionPresenter {
+    fun onUserChooseCeil(ceilInfo: PsychomatrixCeilInfo): Deferred<CeilDescription>
+}
\ No newline at end of file
diff --git a/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/presentation/presenters/DefaultRealisations/CeilDescriptionPresenterImpl.kt b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/presentation/presenters/DefaultRealisations/CeilDescriptionPresenterImpl.kt
new file mode 100644
index 0000000..df5c69d
--- /dev/null
+++ b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/presentation/presenters/DefaultRealisations/CeilDescriptionPresenterImpl.kt
@@ -0,0 +1,37 @@
+package com.github.insanusmokrassar.PsychomatrixBase.presentation.presenters.DefaultRealisations
+
+import com.github.insanusmokrassar.PsychomatrixBase.domain.UseCases.CeilDescriptionUseCase
+import com.github.insanusmokrassar.PsychomatrixBase.domain.entities.CeilDescription
+import com.github.insanusmokrassar.PsychomatrixBase.domain.entities.PsychomatrixCeilInfo
+import com.github.insanusmokrassar.PsychomatrixBase.presentation.presenters.CeilDescriptionPresenter
+import com.github.insanusmokrassar.PsychomatrixBase.utils.Container
+import com.github.insanusmokrassar.PsychomatrixBase.utils.extensions.subscribeChecking
+import kotlinx.coroutines.experimental.*
+
+class CeilDescriptionPresenterImpl(
+    private val ceilDescriptionUseCase: CeilDescriptionUseCase
+) : CeilDescriptionPresenter {
+    override fun onUserChooseCeil(ceilInfo: PsychomatrixCeilInfo): Deferred<CeilDescription> {
+        return async {
+            val container = Container<CeilDescription>()
+            val subscription = ceilDescriptionUseCase.openCeilDescriptionReadySubscription().subscribeChecking(
+                {
+                    container.throwable = it
+                    false
+                }
+            ) {
+                if (it.first == ceilInfo) {
+                    container.value = it.second
+                    false
+                } else {
+                    true
+                }
+            }
+
+            ceilDescriptionUseCase.requestDescription(ceilInfo)
+
+            subscription.join()
+            container.value ?: throw container.throwable ?: throw IllegalStateException("Strange state - must be set value or error")
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/utils/Container.kt b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/utils/Container.kt
new file mode 100644
index 0000000..6f9383a
--- /dev/null
+++ b/src/main/kotlin/com/github/insanusmokrassar/PsychomatrixBase/utils/Container.kt
@@ -0,0 +1,6 @@
+package com.github.insanusmokrassar.PsychomatrixBase.utils
+
+class Container<T>(
+    var value: T? = null,
+    var throwable: Throwable? = null
+)
\ No newline at end of file