Won Wrist Curl was inspired by the occurrence of a strong stimulation to the upper body muscles when wringing out laundry. There are strong spring coils inside the two handles. Exercise by holding both handles in both hands and roll it up towards your body or twist outwards as if you are pushing it out. This is a multi-functional exercising tool that can strengthen your wrist, biceps, and triceps, and even your chest . As it has an excellent wrist stretching effect, it is perfect as a supplementary exercise tool for golf, badminton and tennis. It is also excellent for preventing carpal tunnel syndrome, a disease people who use computers a lot in the office suffer from. Since you can adjust the strength from 1 to 6, people of all ages and gender can exercise according to their own strength. It is small enough to fit right inside a small bag once it is folded, and since it is light, you can carry it around anywhere and conveniently engage in a work out. Won Wrist Curl currently popular in Korea is a product many Korean celebrities who enjoy exercise use to work out. How to adjust power 1. Chest and biceps workout 2. Inner back and biceps workout. 3. Inner forearms workout. 4. Upper forearms workout.