SAFE VENTILATION: The TRIXIE side panel secures your tilted window and prevents your cat from climbing out or getting trapped – so you can ventilate your home with complete peace of mind BREAK-RESISTANT MATERIAL: Made from sturdy, break-resistant plastic, this protective panel withstands the demands of everyday life in a cat household reliably and durably EASY INSTALLATION: The side panel can be screwed or glued into place, making it flexible and simple to fit to different window frames throughout your home without hassle LIGHTWEIGHT & PRACTICAL: Despite its robust build, the window guard is pleasantly light, making it very easy to attach, remove, and reposition whenever it is needed TRIXIE QUALITY: Our TRIXIE cat accessories meet the high standards we apply to all our products. TRIXIE combines excellent product quality with a consistently animal-friendly approach