Cat Perch for Window Sill with Bolster - Orthopedic Hammock Design with Premium Hardwood & Robust Metal Frame - Cat Window Seat for Large Cats and Kittens - Dark Stained Wood with Gray Bed**Important: Check for WINDOW REQUIREMENT** Please make sure the window you will apply to has a 0. 5 inch or deeper slot, a 6 inch or shorter window sill and a 3 inch or shorter gap between the edge of window sill and the surface of the wall under the window. **Your window MUST meet all the requirements to use the perch** Supportive and Secure DesignFeatured soft bolsters on three sides, the plush bed provides gentle support to your cat's joints and