4 way locking cat flap (in, out, in/out and locked) to control your pet's entry or exit. Robust construction with UV stable 100 % polycarbonate flap ensures a virtually unbreakable door. Fits doors up to 50 mm thick. Generous flap size (170 x 175 mm) designed to suit all breeds of cats up to 6 kg, overall size 28.5 x 29.5 cm. Can be upgraded to Access magnetic with Access cartridge magnetic. Spare tunnels available separately for doors and walls up to 300 mm.