Harnesses and tethers make it possible for a pup to enjoy the car while keeping both him & his owners safe. The Seat Belt Travel Harness has a sturdy belt loop that is easily adjustable & connects to most car seat belts systems. Adjustable, versatile and convenient, Petmate seat belt harnesses and tethers keep pets securely fastened in the back seat of a vehicle. Even in the event of sudden braking or sharp turns, pets are anchored and protected. Sturdy belt loop provides connection with most car seat belts systems. Metal D ring for easy attachment to dog's harness. Quick and easy adjustability for dogs of all sizes