... magnets positioned following human body points, "Smart" material, memory foam provides pressure-free feelings, tourmaline emits anion with the function ... of antibacterial.Main Material:1.Magnet.2.Memory foam.3.Stretch terylene.4.Tourmaline fiber.Features:1."Smart" ... balance the requirements of Health Talk. 4.Pressure-free memory foam cotton is with fine pliability and comfort, which helps ...