Training Function: It tightens when your dog pulls and relaxes when he complies with your correction. This training P-leash serves as a choke collar, which circumference is very large and can be adjusted freely. Ergonomic Design: Diameter 1.5cm; Long 180cm. Proper length to prevent falling off while walking. Reflective at night. Get a relaxing and comfortable hiking experience all day long. Easy to Use: Sponge handle for comfortable grip with quick release and reconnect without hurting yourself. High Quality: Ultimate quality, super thick rope which is made of durable nylon materials. It is too strong to be attracted by dogs. It's a little stretched and soft. Wide Usage: Suitable for Teddy, Chihuahua, Miniature Pinscher, Schnauzer, Samo, Husky, Golden Retriever, German Shepherd, Rottweiler, Alaska, Tibetan Mastiff and other dogs. Features - Color: Black. - Material: Sponge and nylon. - Size: Approx. 150 * 1.5 cm / 60 * 0.6 inch (L * W * H). - Training Function: It tightens when your