Pictured below is a Dragon Claw ring. These are usually made of metal with an inside diameter of 4.5 inches and an outside diameter of 6 inches. They are just over 2.5 pounds each.
They are used to strengthen one’s grip – the spread fingers (see below) are used to grip the ring and then you lift it to shoulder level. It is a bit more honest to lift one on each arm at the same time.
I am informed that over time minute particles of brass will be rubbed off and absorbed into the skin, reinforcing the fingertips (or forearms if the other rings are used) to make them stronger and heavier. Trace amounts of raw brass are even used in many Dit Da Jow formulas. By comparison, steel is believed to be toxic when absorbed by the skin, and chrome plating flakes off, causing the risk of cutting the skin.