1 > 4 Switch Modes: Four independent models to lock with switches-swing out only, in only, indoors and outdoors, and fully locked, making it easy to control your pet and get out;2 > applications: outdoor Dimensions: 23.4 x 24.9 x 5.1 cm (W x H x D), internal dimensions: 19.1 x 20.6 cm (W x H), suitable for installation on doors and thin walls, suitable for cats lighter than 8 kilogram and waist circumference less than 60 cm3 > Easy to install: Full instructions provided, make you easily install in windows, doors, closets, etc.;4 neat >: transparent Pet flap allow you to see through the door. Outer screen is waterproof. Brush strip reduces the noise of the closing door;5 > Quality Guarantee: Made of ABS plastic, resistant to abrasions, ...