This is called a Pet Peek window. What a clever idea! Especially for pups like me who like to socialize with the dog next door. We're always trying to peer between the cracks in the fence but it really doesn't satisfy us. I suggested that since Dad was running low on home improvement projects, we order one of these nifty windows so that he can install it in our fence. I'm always thinking about him and we wouldn't want him to get bored or anything. So for all you Pups who are slightly nosey....errrr....I mean interested in the world around you......this might be just the ticket for you!