diff --git a/Assets/Physic_Materials/Slippery.physicsMaterial2D b/Assets/Physic_Materials/Slippery.physicsMaterial2D
index fa6ae07..e78ea10 100644
--- a/Assets/Physic_Materials/Slippery.physicsMaterial2D
+++ b/Assets/Physic_Materials/Slippery.physicsMaterial2D
@@ -8,4 +8,4 @@ PhysicsMaterial2D:
   m_PrefabAsset: {fileID: 0}
   m_Name: Slippery
   friction: 0
-  bounciness: 1
+  bounciness: 0.9
diff --git a/Assets/Physic_Materials/XNSlippery.physicsMaterial2D b/Assets/Physic_Materials/XNSlippery.physicsMaterial2D
index 15c4024..2e1cd64 100644
--- a/Assets/Physic_Materials/XNSlippery.physicsMaterial2D
+++ b/Assets/Physic_Materials/XNSlippery.physicsMaterial2D
@@ -7,5 +7,5 @@ PhysicsMaterial2D:
   m_PrefabInstance: {fileID: 0}
   m_PrefabAsset: {fileID: 0}
   m_Name: XNSlippery
-  friction: 0
+  friction: 0.4
   bounciness: 0