Amazon.sg:Customer reviews: ACEmedia Pink Ab Wheel Dual Wheels More Stability and Comfort Pro Abdominal & Stomach Exercise Training Fitness Equipment Abdominal Wheel Core Waist line Strength Shredder with Knee Pad
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The suction power rating I have offered refers to the spring load system that returns the Ab wheel back to its starting position. It is poor in function and often does not work. Overall the product quality is less than I would expect for the price point. However, it is a useful exercise aid serving the functionality of a much more expensive product. Get it if you must but don’t expect anything more than a yawn.