• Material:plastic /steel
• Function: exercise arm chest mascles
• Arm Exerciser Grade: 20kg,
• 100% Brand New And High quality
• The power twister is one of the best fitness tools you could use to build your upper body strength and arm muscles.
• Arms bent, curved spring force in the back of the neck.
• Arms forward and upward bending of the spring, then relax.
• Arms close to the chest, bending the spring, then straight, slowly relax.
• Color: black