Ab Wheel with Internal Assist System: do controlled, longer sets with full range of motion to get ripped six-pack!
Internal Assist System: Provides enhanced resistance as rolling out, and assistance as rolling back for fluid and controlled repetitions
Pro-Grip Handles: Ergonomic, rubberized design for natural wrist position and maximized stability
Ultra Wide non-skid wheel: For enhanced stability and super-powerful carving motions for challenging your obliques
Non-rotating center piece: For stable and neutral thumb position