Description 1. WIDE UTILIZATION - 3 Speed Adjustable Height Self-Suction Situp Bar, for Men and Women, for High Lift Lower Limbs, Bridge Hips, Support Lateral Extensions, Push-ups, Sit-ups, Bends, flat supports ... 2. MATERIAL - Portable straightening bar, thickened soft foam handle, non-slip, sweat absorbent; High quality steel bracket and rubber suction cup, hard and stable, long service life. 3. STRONG SUCTION - Abdomen gym sucker strong suction, refused to loosen. After wiping the floor with a damp cloth, the suction power can be further boosted. Note: Purple style is random. 4. SUITABLE FOR SMOOTH SURFACES - Sit-up assistant device suitable for smooth surfaces like tile, cured concrete, marble, wood / wood floors, ensure floor and suction cups are clean. 5. SUITABLE FOR ANY ACCASION - The portable sit-up aid is portable for a workout anytime, anywhere.Light weight, easy to store, carry and use.Ideal for gym, home, office or travel. Features: Small size, light weight, easy to store, use the one button switch up and down, three seconds to start. Thick and soft foam, soft and comfortable, will not hurt your feet, safer to use, waterproof and moisture resistant. The three-level height can be adjusted freely and the spring-loaded lock allows you to continuously adjust the level of comfort, suitable for the whole family. step 4 Start fitness mode. step 3 Push the device towards the ground, then press the black switch When the adsorption power is insufficient, a small amount of water can be added to increase the power adsorption. stage 2 Clean the floor before use avoid spaces in the ground. step 1 Choose a smooth floor, such as a smooth marble floor, a smooth tile, a smooth parquet or a flat and smooth composite floor. step 4 step 3 step 2 step 1 Product details Suction cup design Seated suction cup , strong suction, durable