Description: Multi Functional: Versatile ab training equipment can tone all areas including back, shoulders, arms, chest, triceps and stomach, including obliques and hip flexors. High Material: This abdominal wheel is made of PP and TPR, which is soft and quiet, strong and wear resistant, and does not hurt the floor. Feature: Triangular structure, anti skid, widened tire, stable and easy to control, LED display exercise data, can display time. Automatic Return: This roller has an automatic return function, which can be intelligently braked to help reset easily, making training easier. Application: Perfect for a home gym, convenient enough to travel with. It is like having access to professional quality equipment anywhere and anytime, even in the office. Specification: Material: PP, TPR, Steel Size Chart: wheelbase 46cm-51cm/18.11inch-20.08inch handle diameter 3cm/1.18inch handle height 14.5cm/5.71inch wheel height 13cm/5.12inch wheel width 9.5cm/3.74inch Package Includes: 1Ab Roller Wheel Note: Please allow slightly errors due to manual measurement and different monitors.