Feature:1. The barrier-free design of the pet door allows pets to easily enter and exit the room without assistance. 2. Charming cat-eared doors prevent cats from scratching the door when no one is home and cannot enter the do. 3. Cat doors are suitable do home doors of any size and can be adjusted do door thickness. 4. Use do install, avoid falling out and gaps caused by tape installation, and no noise when the cat passes. 5. The cat door is made of ABS material, wear-resistant and durable. The edges are burr-free to protect your cat from scratches. . Inner Cat Door Head Shaped Specification: Item Type: Cat Door Material: ABS Size: approx. 22,5 x 26,5 x 5,5 cm/8,9 x 10,4 x 2,2 inches (length x width x thickness) Total width: approx. 5,5 cm/2,2 inch Inner length: approx. 17,5 cm/6,9 inch Inner thickness of tank: approx. 3,5 cm/1,4 inch . Inner Cat Door Head Shaped How to use:Use pencil, size, electric saw, drill, screwdriver, tape measure and other do cutting and assembly. . Inner Cat Door Head Shaped Package List:1 x Cat Door8 x Screw 8 x Nut 1 x English Manual . Inner Cat Door Head Shaped