This manual neck roller massager has no noise or radiation, you can control the speed, intensity and angle according to your different massage needs to achieve your ideal and comfortable relaxation effect suitable for all ages and easy to use. This neck and shoulder & back massager helps release tight, stiff and sore neck, shoulder or leg muscles by pressing, rolling, squeezing and kneading. Improves blood circulation to relieve fatigue. It is also an ideal massage tool for lymphatic drainage. You can enjoy a trigger point massage at home, in the office, in the yard, outside or basically anywhere you want. It truly gives you a deep tissue massage, relieves stress and improves circulation anytime, anywhere. Carry it with you or use it as a relaxation tool to prevent muscle injury.