Give your cat the independence to go in and out as they please with the Cat Mate 4-Way-Locking Cat Flap. Easily fitted to internal doors, this cat flap ensures your pet's access while helping to prevent unwanted draughts for a warmer home. This modern locking cat door allows you to let your cats in and out, in only, out only, or locked. The unique trimmable door liner enables neat, easy installation in all doors, panels and walls. It is suitable for small and average sized cats. The flap is fully brush-sealed with a magnetic closure, guaranteeing a draught- and weather-proof experience. The cut-out size is 165mm width by 174mm height, and the flap opening size is 145mm width by 145mm height. The overall size of the flap is 192mm width by 200mm height. Installation is possible in UPVC/metal doors, walls, or wooden doors.