Review on Pet Love Fence Bubble Window - 2 Pack for Dogs and Pets, Clear View for Happy Neighbors and Reduced Barking by Danielle Ward

These things are amazing. The problem with the dogs barking was solved immediately. Now he can aim and watch anyone walking along the fence. And don't fall into that "barking like crazy at the invaders" we've been through before. It is very easy to install. I used a felt tip pen to trace, then a saw to cut. Then turn. No problem. Withstood well a 100lb lab (which is a giant spy) and 3 wild kids. Plus winter and heat in South Dakota. No scratch. The neighbors love the bubble, the dog loves it and the kids can sniff too. I recommend them to everyone.