4-way block (entry, exit, entry / exit, open) cat flap with four locking modes: always open, only entry, only exit, fully locked, makes it easy to control your pets in a simple and clean way; with a cat flap you no longer have to close and open the door to wait for your pets. Glass Effect Transparent design to match the glass, ideal for windows, sliding glass doors; ideal for all types of glass; your pets will immediately fall in love with their beautiful overhead door flap. Durable & Great Desgin throughout the cat door is made of durable ABS plastic, weatherproof, and prefers to comfort and ease of use; sturdy stable glass provides a door dog virtually indestructible Wide Application Ideal for windows, sliding glass doors, window glass, ideal for all applications of the; Your Pets will love immediately a sleek flap for pets Great for all animals The size of the brim is 7.25 "x 8, Great for all breeds of cats and some small dogs (6 kg/13 lb); therefore if you wish to give your pet adorable animals more free area, do not hesitate to order our door