4 types of locking (open, stop, on / off, locked) Four-mode cat flap, locking with switches, only adjustable, inside and outside, fully lockable. Perfect Glass Decoration - Clear design to fit into your window, ideal for windows, sliding glass doors, glass windows; Ideal for all glass adaptations. Simple and comfortable - Two parts in the cat flap: the door brush dampens door noise, the rubber inner ring protects your cats from injury. Durable and resistant - All doors are made of strong ABS plastic, weather resistant and very comfortable and easy to use - Robust construction of 100% UV resistant polycarbonate for a virtually unbreakable door. Suitable for all pets Size: 30 cm x 30 cm, suitable for all types of cats and some small dogs (6 kg).