PetSafe Infra Red 4 Way Locking Deluxe Cat Flap - White

Only your cat's collar can activate this flap. Available in white.Overall size: 252 mm x 241 mm (9 3/4" x 9 1/4")Cut out size: 175 mm x 168 mm (6 3/4" x 6 1/2")Glass cut out: 212 mm (8 3/8") diameter circleMaximum pet shoulder width: 150 mm (5 7/8")Maximum pet weight: 7 kg (15 lb)