Plastic. Plastic has good bodybuilding and shaping effects, flexible use and wide application. It is recognized as an anaerobic artifact in the fitness circle, so the plastic of the fitness faucet is very easy to use. Fitness is a kind of exercise, such as all kinds of unarmed aerobics, rhythmic gymnastics, rhythmic gymnastics, and all kinds of self-resistance movements. Gymnastics and yoga can enhance strength and flexibility, increase endurance, and improve the ability to coordinate and control all parts of the body, thus making the body strong.