‎Alloy Steel, Foam

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【Professional ab/core machine】Ergonomic & humanized design, 120°curved dual-track strengthen the abdominal muscles while without putting strain on the back or neck. Separated sliders involve more muscles, targeting on thigh, crus, hip and ab/core muscles, maximizing the workout efficiency.
【Stable & Safe Construction】Upgraded heavy duty steel frame, max weight capacity is up to 440lbs. 0.99inch thickened knee pads and foam-covered handgrips, ensure high durability and comfortable workout. Comes with a pair of straps to protect wrist.