Cats love to look out of windows, a pastime sometimes known as cat television. It's an instinctual and entertainment activity that is usually a form of hunting. Glass window inserts that have the cat flap can be fitted to existing doors or windows. They can also be fitted to double-glazing. https://catflapinstallersnearme98382.jts-blog.com/30043809/fitting-a-cat-flap