Wall Entry Pet Door Extension Tunnel magento_productid_2721 Use the digital timer to

Use the digital timer to schedule each meal down to the minute

so not best for multi-dog homes

Train your dog from your phone—PetSafe® SMART DOG® app is compatible with iOS 8

and has sturdy rubber feet to minimize sliding

Reflective nylon stitching keeps your dog safe while running at night

Wall Entry Pet Door Extension Tunnel magento_productid_2721 Use the digital timer toDesigned to be compatible with the Wall Entry Aluminum Pet Door. Install your door in a wall more than 7 thick with this additional tunnel extension. The tunnel overlaps the pet door frame by 1 inch and fits walls 8 12 inches thick for the medium and large tunnel or 8 10 inches for the small tunnel. You can also cut the tunnel shorter if you need to install it in walls 7 8 thick. PetSafe brand is here to help you and your pet live happy together.