<ul><li>Material: made of 304 stainless steel, durable and healthy</li><li>SHAKE BALL: Fits most sizes of cups or bottles for easy mixing of protein powders.This shaker ball ensures that the nutrients dissolve more completely and quickly.</li><li>Easy To Use:Suitable for most bottles with lids, place the stainless steel cylinder into the bottle and close the lid, then shake evenly.</li><li>Easy To Clean: Very easy to clean, hand wash or machine washable</li><li>Size: 1.96'' x 1.77'', Includes Package: 5 shaker Balls</li></ul><br><br>

5pcs Stainless Steel Spring Balls Shaker Cup Balls Mixing Wire Whisk Balls Protein Mixing Balls for Shaker Cup Mixer