Product description Size: 17.5*9.5cm Material: Wood Package content: 1 * spiny four-wheel massager 1.Massage aids too much mental exertion and inappropriate and forced posture are two factors that cause mild or severe pain in the muscles of the neck, back, and lumbar parts of the spine. With the daily relaxation that lasts for minutes, the wooden massage aid made of natural beech wood is enough for perfect therapy and good health 2.Roller Massage: Massage sticks are equipped with independent working rollers that can rotate 360 to exert perfect pressure on your entire body to effectively activate the reflex zone, improve blood circulation and soothe stiff muscles. The uneven roller can massage the acupuncture points better and achieve the effect you want. 3.Convenient Muscle Massager: Portable and lightweight design, easy to carry and store, you can enjoy pure health and relaxation at home, in the office or even on the road, ease body pain and restore energy, and prepare for the new day. 4.Scope of applicationIdeal for head or foot massages, belly size reduction, body slimming and other purposes. 5.Practical: Easy to use, just press and roll on the skin gently, you can massage by yourself or by others. It is suitable for athletes or runners, it helps to stretch muscles and reduce nerve hypertension; it is also suitable for office workers, it can relieve body pain and nerve pressure; it is also suitable for masseurs, trainers, etc. It is a good helper for massage.