Features:Easy to use: Simply add ingredients and shake ball to bottle or shaker cup and shake vigorously to mix ingredients together.Easy to carry: The shaker ball is small and lightweight, making it easy to carry and mix drinks anytime and anywhere in the gym, office or while traveling.Sturdymaterial: The rocking ball is made of 304 stainless steel, which is sturdyand can be cleaned directly with water for long-term use.Versatility: Not limited to protein shakes, the shaker balls can also be used to mix other drinks.Exquisite workmanship: This rocking ballhas exquisite workmanship and excellent material, which can bring you a good use experience.Notice:*Actual color may be slightly different from the image due to different light effect*Please allow 1-3cm deviation due to manual measurementDescription:Material:304 stainless steelSize:Diameter:50mm