I'm selling this because the size was wrong. I've only worn it three times. Retail price: ¥4,000 From the official website: A-wear is a tool that corrects the condition of rounded shoulders. Because the weight on the arms is one of the causes of rounded shoulders, A-wear applies an outward force to the entire arm from the fingertips. By making a "GunFinger" pose (holding three fingers with A-wear on), it's a tool to maintain ideal condition. Conditioning Bodybuilding Physique Powerlifting Pilates