Tiger Claw Iron Ring Medium - A Pair Worn for wrist weights during forms practice to toughen up the forearms. Used for training and in performance. Also used as weapons. Provide the ultimate in weight resistance. How many can you handle? A pair of Size M. Each ring approximate measurement: 4 3/4" outside and 3 1/2" inside. Weight 1 lb 6 oz. The original weight training in Chinese Martial Arts.