* Ultra Wide Wheel: Ultra-wide ab roller wheel with built-in resistance to help maximize core workouts. * Kinetic Engine : Interior kinetic carbon steel spring offers resistance on the roll out and assistance on the roll back to activate abdominals and arms. * Stability : Ultra-wide wheel tread offers stability for multi-directional exercises (left, right or center), and makes it easy to tailor workouts to be easy, medium or hard.
* Can be use anywhere, home or gym, etc., convenient for your exercise * No damage to the floor, mute rolling, you can use it on yoga mat (not included). * Easy to use, simple forward and backwards motion, no complex learning to use this.