Headrest Restraint Design --- The dog seatbelt (2pcs included) is designed with headrest restraint, which is suitable for various headrest models. The straps that hang on the headrest are connected by lockable quick shackles that are tight and not easy to open, ensuring the safety of your pet. If you leash it to the maximum length, you will have a normal leash. Ideal Thanksgiving and Christmas Gift for Pets. Well Made & Perfect Details --- Puppy seat belt for car, with high quality metal hardware and nylon belt, strong and durable. The buckle design of dog car leash, can be quickly locked and released, making pet safety belt more practical. The reflective stitching design makes it great for night time use. The elastic bungee helps dog prevent jerking with sudden movement. Keeping Safe and Comfortable --- The dog seat belt helps to ensure the safety of your pet and prevent you from distracting when driving. It allows your dog to sit, stand, lie down comfortably or reach to see out the window but keep the dogs from jumping around in the car. Easily to fasten it onto the dog harness via the 360 degree rotation metal buckle. Multifunction & Easy to Use --- The pet car seat belt can be hanged on the headrest easily and the rotation metal buckle connects the dog harness, while dog collar is not suggested for dog's safe. It also can be use with the pet seat cover. It’s not only a pet seatbelt but also a general leash for dogs. Adjustable Seatbelts --- With a buckle and the elastic bungee inside, the seat belt can be adjusted from 20 inches to 27 inches and stretched to a maximum length of 32 inches. The circle can be adjusted from 16 inches to 24 inches. An adjustable car seat belt harness allows the dog to get comfortable without limiting himself.