•Powerful Automatic Roller: The ab roller is made of non-slip rubber and carbon steel. When the ab roller is pushed forward, the carbon steel inner spring will be locked in the limit state. Compared with the traditional abdominal wheel, it can automatically brake and stop forward, ensuring the stability and comfort of the movement •Excellent Design: Set independent thumb grip points, strong pressure streamlined grip, comfortable and non-slip grip when exercising. The abdominal wheel has a handle button design, which is easy to install and disassemble with just one click •Anti-skid and mute: The belly wheel is made of multi-layer materials, and the outer ring is made of environmentally friendly rubber, which is soft and quiet, more stable and safe, and does not hurt the floor. Compared with the narrow wheel abdominal muscles, the width of the pulley is increased, and the balance and stability of the abdominal wheel are enhanced •Core training: The rebound wheel can slide at different angles and change the direction flexibly. It can strengthen and correct the muscles of the abdominal muscles, shoulders, arms and legs, balance the muscles and joints, lose weight anytime and anywhere, and shape the abdominal muscles Package included: •1 x Abdominal Muscle Trainer •1 x English User Manual