Product Description: Item Type:Pet Door Material:Plastic Color:White Feature:Durable Target Audience:Puppy,Cats Size(S,case,height*width*thickness):19.7*19*2cm/7.75*7.48*0.78" Size(S,height*width):15*15cm/5.90*5.90" Size(M,case,height*width*thickness):19.7*19*5.3cm/7.75*7.48*2.08" Size(M,height*width):15*15cm/5.90*5.90" Size(L,case,height*width*thickness):25*23.5*5.3cm/9.84*9.25*2.08" Size(L,height*width):19*18.2cm/7.48*7.16" Features: 1. The craft is exquisite and the material is durable, and we guarantee 100% new brand and the product has a long service life. 2. The product can be installed on the all walls and doors whose thickness arrive at 50mm. This product can be suitable for cats and small dogs. 3. You can set the door (4 patterns)through the lock on the bottom of the sliding flip design, which can let your cats come in and out at any time. 4. Equipped with four screws, this product can be installed easily following the Instructions, and you do not need to buy screws. 5. There are two colors and three sizes for option, and you can choose the favorite and suitable one according to your hobbies. Package Include: 1 x door Notes: 1. Please allow 1-3 cm difference due to manual measurement and 3-5 g for the difference between different colors. 2. Due to the screen difference, the color may be a little difference from what you expect, please allow it. Perfect 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. Thoughtful Design: Transparent flap let pet see through the door. Exterior screen is for waterproof. Brush strip reduces noise from the door closing; Easy To Install: Complete instructions included, make you easily install in windows, doors, cupboards etc; You can set the door (4 patterns)through the lock on the bottom of the sliding flip design, which can let your cats come in and out at any time.