Material: Massager roller is made of natural wood. The surface is smooth, without burrs, and will not scratch the skin. The metal rod in the middle has high strength, good toughness, and is not easy to bend, so that the massage ball rolls smoothly. It is easy to clean, just remove the detachable end, then rinse with clean water, and then reinstall it to use for a long time Size: Massage stick is 17.3inches/44cm long, light and convenient, and can be carried along with the sound. Very suitable for travel, hiking and travel, let you enjoy massage anytime, anywhere Detachable Roller Massage:Manual massagers are equipped with 12 independent Detachable rotatable rollers that can rotate 360 to exert perfect pressure on your entire body to effectively activate the reflex zone.NOTE-Pulling at the handle can disassemble the product (you can replace the roller) Function: When warming up and cooling during exercise, you can use the muscle roller rocker to help recover and prevent injuries. Release muscle tension, improve blood circulation, reduce neuralgia, eliminate fatigue, increase physical activity and flexibility, help to obtain healthy muscles and reduce fat, and shape a perfect body Multi-use: Help improve blood circulation, exercise muscles and smooth skin. Suitable for athletes, coaches, sports athletes, dancers to perform a perfect warm-up. Essential equipment for any professional masseuse, therapist, coach and coach. Very suitable as a gift for family and friends who love sports