Sure Petcare SureFlap Microchip Pet Door Tunnel Extender, Compatible with and Connect, Wall Installation Accessory, Brown

Made of plastic material Can be placed in thicker walls or doors Tunnel element to be used for cat flaps Extends the installation depth up to 50 mm Use to install SureFlap pet doors in a wall Multiple tunnel extenders can be stacked together Extends the 70mm pet door tunnel by 50mm in length