DURABLE MATERIALS: Made of high quality nylon fabric, with sturdy zinc alloy swivel and plastic buckle, the dog harness ensures your pet travels safely; you can enjoy a relaxing walk. Adjustable Length: The dog harness is adjustable from 18" to 31", you can easily adjust the dog harness to the right length to keep your pet safe. Universal Fitment: No need to worry about buckle size compatibility, just clip it to the headrest, this dog car harness can be used on all vans, trucks and SUVs etc. EASY AND CONVENIENT: The head rest dog leash can be easily attached and unattached using the buckle. Not only can it be used as a harness, but it can also be used as a dog leash when you need it. Reminder: For the safety and comfort of pets, please do not fasten the belt pet’s safety tag directly to the pet’s collar. Recommended for use with a pet harness, not a pet collar.