Material: The material is made of strong plastic cement. The frame is constructed of ABS plastic, and the shutter is made of PC plastic. The popular white flap door is suitable for various wooden doors. Lock: 4-way lock to choose your cat’s access: open, locked, entry-only (cat can enter but not exit) and exit-only (cat can exit but not enter).< /p> Easy to install: The pet barrier is easy to install on all surfaces, including wood, brick and PVC doors. For installation in interior or exterior people doors 3/16 to 2 thick, easy installation with step-by-step instructions, cutting template and screws included. Convenience: Rotating design and magnetic closure allow your cat or dog to go in and out freely. The door brush strip eliminates the noise of closing the door, gives the cat free access to its litter box. Size: Our cat flap is professionally designed for small animals. 25cm x 24cm x 4.5cm. Flap opening size is 6W x 6H Ideal for all breeds of cats and small dogs.