Window Perch Catio For Indoor Cats, Expandable Enclosure With Secure Frame And Waterproof Roof, Suitable For Multiple Kittens - GrayDurable Construction: Made with solid wood frame and rust resistant metal wire for long term use Spacious Design: Offers 43. 3'' x 25. 2'' x 24. 8'' of room for multiple cats to relax and play Secure Wall Mount: Three triangular brackets ensure stable attachment to walls Full View Experience: Four sided open design allows unobstructed views of outdoors Weather Protection: Features waterproof oxford fabric and PVC roof for all weather use Universal