This tunnel extender is designed to be used with the SureFlap Microchip Pet Door. Once the door has been installed in the wall, the extender fits snugly into the 7cm long tunnel of the pet door, providing your large cat or small dog with an easy-to-access tunnel that leads right up to the door flap. You can use multiple extenders to create a custom any-length tunnel depending on your wall thickness, and each extender adds an additional length of 5cms. Plus, it comes in two colors, so you can choose the one that suits your household aesthetic!

• Designed to be used with the SureFlap Microchip Pet Door when it’s installed in a wall.
• Allows you to build an easy-to-access tunnel for your pet to walk up to the door flap.
• Fits snugly into the 7cm tunnel of the pet door and each extender adds 5cm to the overall tunnel length of the SureFlap Microchip Pet Door.
• You can use multiple extenders to make a custom-length tunnel depending on your wall thickness.
• Comes in two colours so you can choose the one that fits your home’s style.