Sit-Ups bar | Home Equipment Bar | Portable Gym | Self Suction Sit up Design | Portable Sit up Bar Multifunctional Design--Helping you play sit-ups, push-ups, sidekicks, belly movements, stretching back, elbow plank, press-ups, etc.Good to exercise your abdomen, reduce abdominal muscles and shape your body Portable--Lightweight and portable design, small occupation, portable for a work out anytime, anywhere, easy to install and storage, convenient to use High-quality material--The thick foam soft and comfortable, protect the instep from pain.The cold-rolled steel with high strength, high hardness and bright surface.5 inch diameter large suction rubber chassis with strong suction and stability Easy Installation--Easy for home installation without any tools, find a clean flat ground first, then put the sit-up bar on the ground and pull down the lock. Last, adjust the gear position to fit your feet Note: Couldn't use on wooden floors. Apply to smooth floors: 1. tiles floor 2.concrete-cured 3.any other smooth floors. Make sure the floor and the sucking pad are clean before using(Add a little water can easy to sucking it on the floor) 4"Easy Adjustable Rope, Comfortable Foam Grips Compact, light, and complete with carrying case Swing smoothly with less effort, uncoil easily and resist tangling Small size, not occupy space, lightweight storage. Thick soft foam, soft and comfortable without hurting the feet. A key switch, start three seconds. Waterproof and moistureproof, safer to use. Third gear height, free to adjust. Through the spring snaps freely adjust their comfort level. Strong suction, diameter 13.5cm(5.31) after increased, refused to loosen.