Cat flap With microchip recognition This cat flap is battery-operated and is compatible with the most common microchips. It can program up to 40 different microchips and cats. 4 manual closure options The microchip cat flap has 4 manual closure options, which are adjusted with the white button - only in, only out, in and out and completely closed. Dimensions The dimensions of the cat flap are W 22 cm x H 23.9 cm. The flap opening is 14.6 cm x 13.5 cm (W x H). Suitable for pets up to 7kg Recessed adapter and extension tunnel available separately. Installation This cat flap is suitable for glass, wood, walls, metal and pvc. NOTE Use high-quality batteries, as the economical batteries or rechargeable batteries will not work. Please programme the cat prior to fitting and read the manual for correct cut out and height to fit the door and do you need the install adaptor.