1. The belt length is 75 cm, the belt width is 5 cm, and the chain diameter is 0.5 cm2. Adopt soft cushion and adjustable strap design, can enhance the comfort of the head, forehead and chin3. Double buckle, heavy-duty steel chain and D-ring can reduce pressure and wear4. Boxers, Taekwondo athletes, football players and fighters use training straps to improve neck strength5. Can prevent injuries and reduce pain. Stretch and strengthen the muscles of the spine
