145 Degree curved pillow face design, humanized "golden curve ratio" pillow face, closely supporting the back of the head. 2Three modes, three speed, speed free adjustment, suitable for different users . 3Designed with a painproof cloak, adjust the massage strength, comfortable to use. 4Soft inner core, with memory rebound filling, comfortable to rely on. 5Suitable for neck, hip, leg and back to use, meeting your different massage needs.