Petsafe Staywell Classic Manual 4 Way Locking Cat Flap Mixed, , Petsafe Manual 4 Way Locking Classic Cat Flap. White with out Tunnel 4 locking options: in only, out only, opened, locked|Suitable for cats up to 7 kg (15 lbs)|Overall size: 224 mm x 224 mm (87/8" x 87/8")|Cut out size: 169 mm x 169 mm (65/8" x 65/8")|Glass cut out: 210 mm (81/4") diameter circle|Maximum pet shoulder width: 162mm (63/8")