A dog seat belt is a safety device designed to secure a dog in a vehicle. It typically attaches to the car's seat belt system and connects to a harness worn by the dog. This helps prevent the dog from moving around the car, which can be distracting for the driver and dangerous for the pet. Using a dog seat belt can reduce the risk of injury during sudden stops or accidents. Many models are adjustable and come in various sizes to accommodate different breeds. They are an essential accessory for pet owners who travel with their dogs to ensure safety for both the pet and passengers.