Description
- Dual Springs The arm is designed with both inside and outside springs, safer, more durable, higher stability, and safe for your safety.
- Exercise with the arm can exercise to the chest muscle, three biceps, humerus two, shoulder, abdomen early to have strong body. Exercise necessary.
- Spring is steel spring, stronger and harder, so be careful to bend and then open, the outer layer using electroplating technology, smooth and rust-proof.
- ABS engineering plastic handle, non-slip texture design, prevent skidding, fitness safety is higher.
- Carbon Steel Spring, 38 laps, greater elasticity：Using high carbon steel spring, better elasticity, arc spring design, is the strength of training more concentrated, increase the strength of the muscle
Inside and outside the double spring design, the arm device uses the inside and outside double spring design, is safer, more durable, the stability is higher, for your safe escort. Features: 100% New Brand High Quality Original Guarantee. Perfect for building upper body strength. High grade steel with molded plastic grips. Until Now Max Springs Power 60kg to Challenge your Extreme. *package include* 1* power Twister Bar
