High Quality and Comfortable - High quality nylon woven rope belt with elastic imported latex rope, metal hanging ring and hook, strong and durable so that dog can not bite it.Extra Long Elastic Stretch - Elastic belt can be extended from 16 inches to 24 inches to avoid injury. Make both you and your dog comfortable.Safety Design - When a dog darts hard, its neck is not immediately strangled. This will slow down the dog's movement and prevent injury due to explosive charge.Applicable to Species and Scene -- Suitable for pine lion, golden retriever, labrador, husky, samoye, German shepherd, Summerborn mountain giant poodle, doberman, Alaska and other medium and large dogs. Safety belt for walking, running, training and car travel.Reflective light Design - Two reflective light designs keep you safe and visible during early morning and late night walks.