Battery Powered Cat Flap - WHITE - With see through flap.Access for your cat onlyUnique coded collar keyThe ultimate in securityUniversal fitting for windows, walls and doors.For cats up to 7kg (15lbs)Overall size: 241mm x 252mm (9 1/4" x 9 3/4").Cut out size: 168mm x 175mm (6 1/2" x 6 3/4").Glass cut out: 212mm (8 3/8") diameter circle.Maximum Pet Shoulder Width: 150mm (5 7/8")3 Year Guarantee