1. WIDE USE -- Self-suction situp bar 3-speed adjustable height, for men and women, for high lift lower extremities, bridge hips, support side extensions, push-ups, sit-ups, bends, sit-ups dishes... 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 enhanced. 4.SUITABLE FOR SMOOTH SURFACES -- Sit-up assistant device suitable for smooth surfaces like tiles, concrete-cured, marble, wood/wooden floors, make sure the floor and suction cups are clean. 5.SUITABLE FOR ANY ACCASION -- The portable sit-up aid is portable for a workout workout anytime, anywhere. Light weight, easy to store, carry and use. Ideal for the gym, home, office or travel.