Every dog should have a point of view. The PetPeek Fence Window for Pets can easily make that possible. Dogs are curious; they want to know what’s happening out there. Help satisfy their curiosity and make it possible for them to have a peek. The Pet Peek window is a durable, clear, hard acrylic dome 9.5 Inch in diameter and 5 Inch deep, with a black trim-ring and all necessary hardware for easy do-it-yourself installation into your wooden or vinyl fence. It is an attractive addition to your fence.