Petsafe Microchip Cat Flap Tunnel Extension - tunnel, extension for Microchip Cat Flap

PetSafe Microchip Tunnel Extension is helpful for installing the PetSafe Microchip Cat Flap in very thick walls or doors. The tunnel should be placed in the opening between the inside and outside of the flap to ensure a secure, smooth finish for the area the pet moves through. It extends the built-in tunnel of the flap by an additional 5cm. You can add single or multiple extensions.