Flap opening size is 8." W x 10.2" H, For SMALL dogs and cats or other small animal. AUTOMATIC CLOSE & LOCKABLE - Dog door with magnetic flap closures, built-in magnetic can keep the door automatically closed when your dog leaves SUITABLE FOR ALL SCREEN DOOR - Our item suitable for all the screen door and allow your pets freedom to get in and out. DURABLE - Our dog door frame is made of high quality ABS material, Especially mesh yarns, the mesh yarn is made of expensive materials and is strong and durable. EASY TO INSTALL - Just need to fix it with screws and operate according to the instructions. Customize it with an imprint of your company name, logo and more to associate your brand with a fun and unique product and make your next event more successful !