This hand-crafted, waterproof, lightweight, dog leash is done in standard USA-made Beta Biothane, which measures approximately 1/2" wide and approximately 1/8" thick and has a 500 lb. break strength. This leash is 30' long. It has been made with black powder coated zinc hardware with a 3/4" o-ring and locking carabiner on the dog end, triple riveted with black powder-coated brass rivets. Our locking carabiner is 3" long made from aircraft aluminum with a 2,697 lb. break strength (rated 12kn). It also comes with a biothane leash keeper to keep your long leash coiled up or you can use it to hang it on a hook! We DO NOT recommend this width for doggos over 30 lbs. Please note - doggos CAN chew through biothane!