Type:10/20/30/42ft Durable Rope Dog Training Leash Material :Nylon,durable, not easy to broken 2 Colors:Black/Blue Features: Sturdy metal hook,compliment any collar or harness,great for training dogs These extra long training leash are designed for Long distance training. Reflective design,it can be used safely at night Works great for tracking work like searching/hunting or training like recall/distance commands. And more freedom of movement on Long-distance outdoor activities. Fits for:Labrador Retriever/Golden Retriever/Beagle/Rottweiler/Husky/German Shepherd and other dogs outdoor training. Leash Length Diameter 3M 1cm 6M 1cm 9M 1cm 15M 1cm) Note: Please allow 0.5-1 inch(1-3cm) error due to manual measurement. Please feel free to contact us if you have any question.