Training Function: It tightens when your dog pulls, and loosens when he complies with your correction. This training P-leash serves as a choke collar, whose circumference is very large and can be adjusted freely. Ergonomic Design: Proper length to avoid stumble when walking. Reflective at night. Obtaining relaxing and comfortable dog walking experience all day long. Easy to Use: Sponge handle for comfortable gripping with quick release and reconnect without hurting your hand. High Quality: Ultimate quality, super thick rope which is made of strong nylon material. It is too strong to be bit and tore by dogs. It is a little bit stretch and feels soft. Widely Use: Suitable for Teddy, Chihuahua, Miniature pinscher, Schnauzer, Samo, Husky, Golden Retriever, German Shepherd , Rottweiler , Alaska , Tibetan mastiff and other dogs.