DURABLE Training Leash: 100% Environmentally friendly Flex poly coated nylon strap material made the Waterproof Dog Leash, strong tensile resistance can carry 600 - 750 lbs pull force. LONG LEASH: Easy to hold handle, made with metal strong rivets. 360 degree swivel clasp made with strong rivets.,DURABLE Training Leash: 100% Environmentally friendly Flex poly coated nylon strap material made