Sunny Health & Fitness No. 003 Ab and Core Training Exercise Wheel CORE TRAINING: Each repetition of the rollout exercise works various muscles targeting your abs, hip flexors, shoulders, and back. It will not only help improve you lower back strength but decreases your risk of muscular injury. DOUBLE-WHEEL DESIGN: Wide shaped wheel ensures stability and bears the weight of your entire body. The wheels textured surface promotes stability and control. Handles prevent slipping and while reducing hand fatigue. BEGINNER TO ADVANCED: Build your core progressively by starting from a kneeling position and performing rolling pushups. Eventually, advance to more difficult positions. Perform push-ups or hold push-up position for a variety in your workout. ERGONOMIC: This lightweight, compact abs wheel is weighted at 1.6 lbs making this tool the perfect size for fitness on the go. Take it to work for a quick lunch time workout and store in a closet when not in use. GREAT FITNESS TOOL: The Abs Wheel could possibly be the most versatile fitness tool in your in home gym. You can move back and forth and side to side to engage your side abdominals and oblique muscles.