EASY TO INSTALL - Letter screws are included in the set, which allows you to easily install in windows, doors, cabinets, panels and walls etc, if you have a thin door, you can adjust the covering and cut it to reality Needs. EXCELLENT QUALITY - Made of ABS and nylon material, weather resistant, the surface is smooth and durable. SR ET PENS - Transparent flap let animal from company see through the door. The outer rain seal is waterproof. The brush strip eliminates the sound of door closing. The pet door screen gives the cat more freedom. The inner edge of the frame is polished so as not to hurt the cat. PET FLAP SCREEN DOOR - Can withstand high and low temperatures, can keep mosquitoes, pests away, avoid being scratched by pets. PERFECT PET SUPPLIES - It is a nice channel for your cat or small dog, size: 24 x 29cm / 9.45 x 11.42in. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Minnanxin