Specification: Product Name: Dog Flap Door Materials: ABS Color: White Applicable Objects: Cats and Dogs in General Size(Optional): S/M/L S: 19.7x19x2CM/7.75x7.48x0.79in M: 19.7x19.5x3CM/7.75x7.67x1.18in L: 25x23.5x5.3CM/9.84x9.25x2in Weight: 0.28KG/9.88OZ

How to Install: 1.Use a piece of paper to draw the size of the door cover, mark the corresponding location on the door according to the drawing. 2.Drill a hole in each of the four corners of the door with a drill bit, and then use a chainsaw to open (if it is a glass door, use a glass knife, gently scribe and fix it with glass glue). 3.Then for the sake of aesthetics, get a layer of wood skin to wrap around the hole. 4. Install the cat door on and fixed with screws. 5.Screw mouth is also equipped with a screw cover, press on to complete.

Package including: 1Dog Flap Door 1Use Manual 1*Install Too Pack [4 Locking Methods]: The dog flap door has four locking methods: No entry and no exit (completely closed); Can go in and out (completely open); Only in but not out; Only going out but not in. You can freely adjust the modes [Controllable Direction]: This dog flap door is designed with a controllable switch, so you can change the direction of entry and exit by toggling the bottom button, which is very easy to operate [Strong and Durable]: The cat flap gate is made of high-quality ABS material, which is strong, scratch-resistant, wear-resistant, safe, non-toxic, eco-friendly and durable [Transparent Door Design]: The middle flap adopts a transparent design so that it is convenient to observe the indoor or outdoor situation [Three Sizes for Your Choice]: This pet door is suitable for cats and dogs. There are three sizes for you to choose from: S: 19.7x19x2CM/7.75x7.48x0.