HQ Pet door 4 way Locking Small Medium Large Dog Cat Flap Magnetic Door Frame
Slide the locks on the bottom of the flap to set the door to one of the following Flap Size (W x H) 15.5cm(6.2") x 16cm(6.4") approx. Flap Size (W x H) 18.5cm (7.4") x 20cm(8") approx. Flap is locked from both sides.