*Inner flap size: 170mm x 155mm; Overall size: 245mm x 190mm.
*Suitable for wood fitting from 11-52mm.
*The frame is manufactured from ABS, and the flap from virtually indestructible polycarbonate.
*A small magnet, attached to the pet's collar, activates the multi-magnets that operate the opening latch to allow the pet entry.
*Has a four way locking system.
*Helps keep stray cats out.