diff --git a/custom-views/SampleCustomView/.idea/misc.xml b/custom-views/SampleCustomView/.idea/misc.xml
index 166356a..f08317b 100644
--- a/custom-views/SampleCustomView/.idea/misc.xml
+++ b/custom-views/SampleCustomView/.idea/misc.xml
@@ -44,6 +44,7 @@
         <entry key="app/src/main/res/layout/fragment_sample_bottom_sheet_dialog.xml" value="0.3848958333333333" />
         <entry key="app/src/main/res/layout/fragment_searcheable.xml" value="0.3046875" />
         <entry key="app/src/main/res/layout/fragment_show_circle_view.xml" value="0.1" />
+        <entry key="app/src/main/res/layout/fragment_simple_concat_adapter.xml" value="0.17291666666666666" />
         <entry key="app/src/main/res/layout/fragment_solving_keyboard_overlapping_bottom_sheet.xml" value="0.3848958333333333" />
         <entry key="app/src/main/res/layout/fragment_tree_structure_department_multiple_recycler_views.xml" value="0.3046875" />
         <entry key="app/src/main/res/layout/fragment_two_list_department_bottom_sheet_dialog.xml" value="0.37083333333333335" />
@@ -51,6 +52,7 @@
         <entry key="app/src/main/res/layout/layout_bottom_sheet_dialog_list_option_sample_1.xml" value="0.18718338399189463" />
         <entry key="app/src/main/res/layout/layout_bottom_sheet_fragment_dialog_sample_1.xml" value="0.21331521739130435" />
         <entry key="app/src/main/res/layout/layout_bottom_sheet_fragment_solving_problem_jeyboard_overlapping.xml" value="0.3848958333333333" />
+        <entry key="app/src/main/res/layout/layout_header_recycler_view.xml" value="0.36302083333333335" />
         <entry key="app/src/main/res/layout/layout_item_departments.xml" value="0.3848958333333333" />
         <entry key="app/src/main/res/layout/layout_item_feature_horizontal_recycler_view.xml" value="0.3365036231884058" />
         <entry key="app/src/main/res/layout/layout_item_feature_recycler_view_of_recycler_views.xml" value="0.1296875" />
diff --git a/custom-views/SampleCustomView/app/src/main/java/com/xp/samplecustomview/feature/recyclerview/features/itemdecoration/RecyclerViewItemDecoration1Fragment.kt b/custom-views/SampleCustomView/app/src/main/java/com/xp/samplecustomview/feature/recyclerview/features/itemdecoration/RecyclerViewItemDecoration1Fragment.kt
new file mode 100644
index 0000000..225e3cf
--- /dev/null
+++ b/custom-views/SampleCustomView/app/src/main/java/com/xp/samplecustomview/feature/recyclerview/features/itemdecoration/RecyclerViewItemDecoration1Fragment.kt
@@ -0,0 +1,31 @@
+package com.xp.samplecustomview.feature.recyclerview.features.itemdecoration
+
+import android.os.Bundle
+import androidx.fragment.app.Fragment
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import com.xp.samplecustomview.R
+
+
+/*
+    links de estudo
+    https://developer.android.com/reference/androidx/recyclerview/widget/RecyclerView.ItemDecoration
+    https://stackoverflow.com/questions/24618829/how-to-add-dividers-and-spaces-between-items-in-recyclerview
+ */
+
+class RecyclerViewItemDecoration1Fragment : Fragment() {
+
+    override fun onCreateView(
+        inflater: LayoutInflater, container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        // Inflate the layout for this fragment
+        return inflater.inflate(R.layout.fragment_recycler_view_item_decoration_1, container, false)
+    }
+
+    companion object {
+        @JvmStatic
+        fun newInstance() = RecyclerViewItemDecoration1Fragment()
+    }
+}
\ No newline at end of file
diff --git a/custom-views/SampleCustomView/app/src/main/res/layout/fragment_recycler_view_item_decoration_1.xml b/custom-views/SampleCustomView/app/src/main/res/layout/fragment_recycler_view_item_decoration_1.xml
new file mode 100644
index 0000000..694164c
--- /dev/null
+++ b/custom-views/SampleCustomView/app/src/main/res/layout/fragment_recycler_view_item_decoration_1.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".feature.recyclerview.features.itemdecoration.RecyclerViewItemDecoration1Fragment">
+
+    <!-- TODO: Update blank fragment layout -->
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:text="@string/hello_blank_fragment" />
+
+</FrameLayout>
\ No newline at end of file