Eliminates sore and aching of muscles.Features:Eliminates sore and aching of muscles.Remove fatigue of your body.Promote blood circulation.Best gift for yourself or your friends.Notice:Due to the difference between different monitors、 the picture may not reflect the actual color of the item. Please consider you mind or not before buying.Specifications:Material: ResinColor: Deep green、 pink、 purple、 blue (Optional)Size: 6 * 6cm / 2.36 * 2.36in (D * H)Weight: 141g / 4.95ozPackage list:1 * Massage Ball