Exercise Wheel works not only the abdominal muscles, but also the entire upper body as you contract, stretch the muscles in your back, shoulders, chest, & arms. Dual Wheels for...
Perfect for building hand & forearm strength.
Ergonomic hand grip.
Heavy Hand Grip: 10 - 40 KG (Spring 2.8mm).
Light Hand Grip: 5 - 20 KG (Spring 2.3mm).