These Seat Belt Safety Straps for Dogs are 1″ wide and adjustable to as long as 31″ to either give your pooch some space to relax or tighten them up for limited movement. They are embroidered on one side and the other side has a decorative ribbon and they can be personalized any way you’d like. One end snaps into your car’s existing seat belt and the opposite end is a swivel hook to attach to a harness. For the safety of your dog, you must attach the swivel hook to a harness as opposed to a dog collar. The harness and strap will now keep the dog safely secured in the backseat of the car for a road trip!