Booomchik BioThane heavy-duty hand-stitched working and service dog leash. Adjustable, multi-functional, 12-in-one Easy to adapt to any situation. Can be used as a hands-free or a regular leash, shortened, used as a slip leash, quick-tied to a post, 2-dog leash, dual control leash and can be connected to your bike. Perfect police, therapy and service dog leash. Also perfect for hiking, biking, running, agitation and obedience training. It's ~9 ft long, has 4 fixed D-rings and 2 loose O-rings that can be made adjustable with the included rectangular rings. Strong yet lightweight and thin, about 1/10" thick. Perfect for any weather, terrain and activity, doesn't absorb moisture, so it will never smell. BioThane is a strong polyester webbing with PVC coating that makes it more durable, waterproof and easy to clean. It will outlast nylon and leather. Handmade in NYC from Beta BioThane and quality stainless steel hardware (rivets are nickel plated solid brass). Beautiful craftsmanship with emphasis on strength. Break strength is 500lbs, good for dogs of all sizes. 60 inches (~5 feet) 73 inches (~6 feet) 83 inches (~7 feet) 93 inches(~8 feet) 103 inches(~8,5 feet)