want to do some exercise indoors? want to and strong even ? This is a great assistance, a kind of fitness equipment. Can hold you securely, also can let you train the waist and arm. Made of premium plastic material, durable and practical. Features -Material: Steel and foam -Size: About 50X26X15cm/19.65X10.22X5.89in - Enlarged comfortable handle, with steel tube and covered with absorbent foam, feeling comfortable, absorbing sweat and prevent slip. - Easy operation of locking. Gently press down the to secure it firmly. More convenient to use. - Thickened wrapping. Effective buffering to reduce sports injuries safer sports. - Three gears can be adjusted according to different needs, free between high and low position. - A new design. The combination of the sit-up auxiliary and the tension in one multi-functionl . Package list: 1 x tension assist