Effasion Pet Door for Cats and Dogs 4-Way Locking White Medium Cat Door for Indoor Outdoor Doors, Weatherproof Cat Flap Door for Pets with Circumference <24.8"

?????Pet Door Size?Medium Size: outer size: 19 x 20 x 5.5 cm (W x H x D); inner size: 14.5 x15.5cm (W x H); cut-out size: 14.5 x15.5cm (W x H); fits cats up to 16 lbs, suitable for any wall or door up to 50 mm thick. ?????Simple and Good Design?Transparent flap let pet see through the door. Exterior screen is for waterproof. Brush strip to reduce energy loss and silent action, ensure that neither the pets nor the owner will be disturbed ?????Easy To Install?Complete instructions included, make you easily install in windows, doors, cupboards etc; our cat flap door come with a 3-year warranty, if you have any questions please do not hesitate to contact us ?????4 Switch Modes?Switches-swing out only, in only, both in and out, and fully locked, easy control of your pet's in and out; ?????Cat Door?A great solution to give your cat access to any interior room, while giving you complete control; Perfect for access to the bedroom or even food or the litter box when kept behind closed doors to keep the dog and kids out.