This new foot massager roller has 12 rollers (Each roller is equipped with 12 convex acupressure points) and 4 magnetic beads. The arched design mirrors the natural curvature of the feet for increased comfort. Magnetic beads combined with traditional Chinese medicine theory can better let you relax and relieve tension. It helps relieve plantar fasciitis, heel spurs, arch pain, myofascial pain, neuropathy, or painful feet and muscles. Also, It’s great for promoting blood circulation and providing deep relaxation. Regular foot massage will bring pleasure to the body and mind. It’s made of sturdy ABS Plastic and Magnet. It’s easy to wash and dry. The massager from slipping and protect your floor.