Features They work by applying pressure to the P6 or Nei-Kuan pressure point on each wrist with a plastic support that works to restore balance in the body. Used by doctors and in hospitals, it is fast, simple to use and can be reused countless times. The plastic storage box has a convenient size, making it easy to always have with you.Use to improve : Nausea Postoperative nausea Morning sickness during pregnancy Motion and travel sickness Chemotherapy-related nausea