Suitable for smooth surfaces and make sure the floor and suckers are clean. This self -suction sit-up bar is designed to free your hands and do exercises on your own. It is compact and lightweight, very convenient for home workout and traveling. Features: Strong and Durable: Sturdy steel frame is built for extreme durability, great assistance for waist/abdomen/leg/body shaping, butt lift and muscle toning. Stable Support: Natural rubber sucker firmly grips the floor to ensure a safe and stable stand for your training. Max. bear capacity: 330lbs. Adjustable Height: Soft, thick foam handles are comfortable against your feet and prevent chafing. Adjustable height to fit different needs. Wide Applicability: Suitable for smooth surfaces like tiles, concrete-cured, marble, timber / wooden floors, make sure the floor and suckers are clean. Compact and Lightweight: Space saving and very convenient for storage and carrying wherever you go. Product Name: Suction Cup Sit-up Cushion Material: High-quality Steel & Plastic & Rubber & Cotton Color: Black Blue Pink Purple Suction Cup Sit-up Cushion