Product parameters: Material: manganese steel / foam / silicone Size: 27 * 12 * 13cm Color black Weight: approx 620g Scope of delivery:Portable sit-up bar * 1 1. SELF-SUCTION STYLE - Portable self-suction sit-up bar, with thickened silicone sucker, sucker diameter 12cm, strong suction that holds the floor firmly in place, suitable for smooth surfaces such as tile, concrete-hardened marble floor. 2. FLEXIBLE AND ADJUSTABLE - Sit up bar ugnapf with spring buckle, the height of the seat machine is adjustable in 3 gears, more flexible and meets your different needs. 3. MULTIPLE FUNCTIONS - A variety of fitness methods, sit-ups, flat supports, push-ups, roll-ups, push-ups, back-ups, leg-ups, side-ups, hip bridge movement, leg extension ... 4. SAFE - Foam protective handle, sit-up aids, wear-resistant, environmentally friendly, do not hurt the foot, grip comfort, increase friction, convenient and safe.