?Universal Size?:car sickness bands that one size fits for all(Adults and Children), very elastic and harmless to skin.5.5x3cm Strengthened for 5.5inch. Color:Black, Grey. ?Effective and Healthy ?:The most healthy way for motion sickness relief, natural, reusable & non-drowsy remedy with no drugs or side effects. ?Use Multiple Times?: Can be used continuously and repeatedly. Does not cause drowsiness or other side effects. ?Reduce Various Sickness?:motion sickness bands great for reducing sea sickness, car sickness, aircraft sickness and any other travel sickness. ?Working principle?:Anti-Nausea Wristbands is to apply pressure to the Neiguan acupoint on each wrist through a plastic stud, thereby restoring the body's balance.