Pet Dog Nylon Rope Training Leash Slip Lead Strap Adjustable Traction Collar Made of high quality material, it's soft, smooth, durable and reusable. It is too strong to be bit and tore by dogs.The weave is very close and well ordered. It is a little stretchable and feels good.This leading leash can serve as collar, its circumference is very large and can be adjusted freely. You'd better adjust the size of collar bigger than that of your pet's neck in case your dog is tightened. L: Diameter is 0.39 inch, Rope fits Large dogs, such as Chow Chow, Husky, Samoyed, Golden Retriever, Labrador, Alaska, Giant expensive dog.