Practical: Because of its low weight it is very easy to carry for you as well as it installiert only a few seconds so that you can practice muscle training and fitness everywhere. For Beginners or Professionals:This wheel aesy to assembly instruction and use .Whether you're a beginner looking for great workouts for your fitness or already taking advantage of the ab roller our roller is the best way to build muscle burn calories and exceed your fitness goals. Manufacturered by ZLSP. Keep Your Health:The fit Abdominal Roller Wheel is designed to build strength and definition in your abs back arms chest and shoulder muscles.as your personal fitness trainer to help you build stronger six pack abs build muscle and improve overall endurance. If you have any questions please contact us we will reply you within 24 hours I wish you a happy shopping! Sturdy Material:TPEStability and non-slip handles for comfort and safe.Automatic reboundthick steel pipethickened big wheel.The roller can be detached or mount on seconds and won't slip easily.