PetSafe Staywell Cat Flap, Free-Swinging Flap, Four Locking Options, Telescopic Frame, with Tunnel, Heavy Duty, Weatherproof, Silent, Magnetic Frame, for Cats with a Max. Weight of 7 kg, Grey

easy installation: this petsafe cat flap can be installed in just three easy installation steps and is suitable for brick walls, wooden doors, pvc and metal doors, as well as single and double glass windows and doors. it can also be installed in doors and walls with a thickness of 6 cm. weatherproof and safe thanks to the magnetic strip which has been attached around the flap, the flap can be used both in summer and in winter and is protected by 4 types of closure dimensions: the dimensions of the petsafe free run door: 22.6 x 10.5 x 22.8 cm; maximum shoulder width: 16.2 cm; cats up to 7 kg more freedom and movement: thanks to this pet flap, your pet has access to selected areas and can move freely within them