Description: 2 in 1: Abdominal workout, 2 in 1, simultaneously exercises back, shoulders, arms, chest, triceps and abs, including obliques and hip flexors. The automatic return waist wheel adopts automatic return technology to help you control your movement and improve your fitness efficiency. Timing function: The abdominal wheel adopts a large screen display to accurately record exercise data. Retractable armrests, suitable for people of different heights.Comes with a phone holder so you can exercise longer. High Quality Material: The abdominal wheel is made of high quality PP material, it runs silently, is strong and wear resistant, and does not hurt the floor. The elbows are made of multi layer material, which is sweat absorbent and non slip, soft and comfortable. Stable and Smooth: Widened double wheels, triangular structure is super stable and easy to control, the wheels adopt anti slip texture, and the two wheels are well balanced, suitable for beginners or advanced fitness. Perfect Gift: This is an ideal gift for your family or friends. It is a wonderful thing to exercise with the family and keep in good shape. Specification: Material: PP Size Chart: 48.5cmx17.5cmx35cm/19.09inchx6.89inchx13.78inch Package Includes: 1 Abdominal Roller Note: Please allow slightly errors due to manual measurement and different monitors.