Material: The handheld massager is made of high quality plastic, and the roller is made of high quality rubber balls, it is safe, tasteless, non-toxic, does not harm the skin and is durable. Design: Based on ergonomic design, non-slip grip, comfortable and strong grip, the rubber surface roller can help you relieve body tension and stimulate key pressure points; compact and easy to use, just press your skin and roll back and forth. Two sturdy massage balls can accelerate the blood circulation in the back, legs and waist. Easy to use: small and light, portable and easy to use, you can use it with products from skin care to achieve better absorption. It can be used in any place like watching tv and yoga every day. Very suitable for use on the thighs, buttocks, arms and abdomen. Effectively relieves pain and stiffness of the whole body, shoulders, legs, feet and hands. Health care: Promote metabolism, reduce muscle tension, effective for weight loss, improve blood circulation, reduce inflammation, release toxins, reduce joint pain, fibromyalgia, regulate hormones, release endorphins, promote healing and improve sleep. Application: Rolls of muscle can be applied to neck, waist, arms, back, legs and feet.It is very suitable for exercise before and after exercise to exercise muscles, increase blood circulation, travel or use in the office. It is an exquisite gift for family and friends.