Product details:

The Ideal Fast Sash Cat door for windows is the perfect choice for an easy to install suitable product for windows. This sash window cat door requires not tools to install. The clear flexible flaps make it easy to train pets of all sizes. The door requires no permanent modifications so is a perfect choice for renters or vacation homes, and gives your cats the freedom to come and go as they please. Size: 1.25 X 12.38 X 23.