Staywell PetSafe, 700 Series Tunnel Extension, 5.8 mm, Easy, Precise Install

Fit: Designed to accommodate doors or walls that are too deep for your pet door, ensuring your pet's easy access Seamless Compatibility: Specifically crafted for use with the Original 2-Way Pet Door (700 Series) for a match Easy Installation: Simply attach the extension tunnel to your existing pet door setup for a quick and straightforward enhancement Single Use Limitation: Please note that only one extension tunnel can be added per door, with no further tunnels possible A 27 Year Legacy of Joy: Since 1998, PetSafe has been dedicated to creating innovative products that ensure safe and healthy pets, bringing happiness to pet families worldwide and enriching the lives of pets and their owners