?Features? 1. The sit up bar with advanced two-row support rods that provide greater heel power and double efficiency. 2. The enlarged rubber suction cup enhances the suction power to the ground, more stable and durable. 3. High density soft foam-covered handle can protect the instep from pain. 4. The spring clip of the abdominal device has a four-position height, Through the spring snaps freely adjust their comfort level, just have one to fulfill the training requirement of your whole family. 5.These sit up bars are lightweight and very portable. 6. The sit up bar can exercise arms, shoulders, chest, back, legs, abdomen, waist and buttocks. Strengthen your Abs and Core Muscles Easily with this Portable Sit up Bar!?Install and exercise finished? 1. Find a clean and flat ground and avoid the gap between the ground. 2. Make sure the floor and the sucking pad are clean. Put the sit up bar on the ground and pull down the lock. 3. Adjust the gear position on a comfortable height to fit your feet. 4. pull up the lock to unlock the equipment. When your exercise finished.?Specifications?Material: Metal + Sponge Chassis diameter: 14.5CM, Adjustable height: 18-22CM, Width: 27CM Color: Black?Grey?Black?Light Pink ?Packaged?1 x Abdominal Muscle Trainer