Steel Cylinders are Heavy and Cumbersome to carry, but the Air Capacity and Buoyancy Characteristics are very desirable for the serious diver. Being able to easily transport these cylinders is a plus. XS Scuba's Steel Cylinder Carry Handle can make transporting the cylinder Easy and Comfortable. Handle is made from Tough and Durable Injection-Molded Plastic Material with a Fold-Down Handle when not in use. Steel Cylinder Handle fits XS Scuba Worthington & Faber Steel Cylinders (except Worthington LP77).