Information White Magnetically Operated Cat Flap Cat friendly transparent flap Cat Safe Action Cat control - 4 way security In Only - Out Only Open or Locked Magnetic collar key Gives your cat the key to the door. with a silent latching system. Once installed there are no running costs. White finish with a 60mm tunnel (this tunnel cannot be cut as it contains a delicate mechanism). Dimensions Overall size: 244mm x 244mm (8 7/8" x 8 /78") Cut out size wood: 169mm x 169mm (6 5/8" x 6 5/8") Cut out size Glass: 210mm (8 1/4") Diameter Pet Max shoulder width: 162mm (6 3/8") Overview Suitable for cats 4 Way Locking Magnetic Additional Tunnels Fits Walls, Windows, Glass, Doors - Wooden, PVC, uPVC & Metal