Description: Multi Functional: Versatile ab training equipment can tone all areas including back, shoulders, arms, chest, triceps, and stomach, including obliques and hip flexors. Premium Material: This abdominal wheel is made of PP, which is soft and quiet, strong and wear resistant, and does not hurt the floor. Comes with a phone holder, which fits the size of mainstream mobile phones. Stable and Smooth: Super stable and easy to control, Two wheel abdominal roller well balanced, LED display exercise data, can display timer, counter, calorie. Works for both men and women. Automatic Return: This roller has an automatic return function, which can be intelligently braked to help reset easily, making training easier. Two wheel ab roller well balanced, suitable for beginner or advanced fitness level. Wide Applications: 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 Size Chart: 48cmx30cm/18.90inchx11.81inch Package Includes: 1 Abdominal Roller Wheel Note: Please allow slightly errors due to manual measurement and different monitors.