Item Type: Power Spring Arm Bar Material: Carbon steel Package List 1 x Power Spring Arm Bar Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. 1Strong Arms: Through the continuous use of arm spring strengthening bar, it effectively strengthens the arm muscles and improves the grade of physical fitness. 2Exercise Abdominal Muscles: The spring bar exerciser is designed to the loss of weight and sculpt abdominal muscles with a variety of abdominal exercises. 3Full Body Workout: In addition to arms and abdominal, the spring power exercise bar can also be used to exercise other body parts such as the back and chest. 4Ideal Fitness Equipment: Compact and lightweight design makes the spring chest expander rod suitable for home and office, making it easy to exercise for fitness at any time. 5Durable Construction: Arms spring exercise bar is made of premium material, which is high strength, reliable, sturdy and durable and has a long service life.