【Product features:] can head， neck weight average distribution， so that the head， the neck in the zero stress state of health， which led to reduced due to blocked blood circulation and nerve muscle paralysis， perfect head and neck support， relax the head，neck， shoulder muscles and nerves， contribute to the protection of the cervical spine.Especially for insomnia， stiff neck， cervical spondylosis， easy desk workers， drivers，allowing you to enjoy more healthy and comfortable sleep. A new feeling of high-quality products， has been popular in Europe， America， Japan， Korea and other countries and regions， high-tech space memory foam inner core Seiko produced， soft to the touch， elastic soothing， beautiful appearance， elegant taste.