Do you have cats? If so, you will notice that they spend a lot of time looking out the windows of your home. This is normal behavior for a cat; they love to observe the things that go on outside the house. The problem, however, is that the perch they chose (the window) is very unsafe. When perched on the windowsill they tend to be somewhat unstable and there is always the risk that a strong wind could blow and knock them off.
While you can't stop your cats from climbing the window, you can make it safer for them. This wooden window perch is exactly what you need. If you attach this device to your window, your cat will be perfectly comfortable. So you don't have to worry about their safety.