Amonax Convertible Ab Wheel Roller with Large Knee Mat
Amonax Convertible Ab Wheel Roller with Large Knee Mat for Core Abs Rollout Exercise. Double Wheel Set with Dual Fitness Strength Training Modes at Gym or Home One of the most important differences between a double-wheel and single-wheel abs roller is how stable it feels, and therefore how intense/robust your exercise is. The two different setting can complement each other...