40 KG Fitness GYM Workout Power Twister – Black

Description

• 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.
• 100% Brand New And High quality
• Material: Spring
• Arm Exerciser Grade: 40kg
• Function: Body