<ul><li>This ball was Made of 304 Stainless steel, durable and healthy and easy to use.</li><li>This ball ensure nutrition dissolve more totally and quickly.</li><li>Suitable for most of bottles with cover, Put the stainless cylinder into the bottle and cover, then shake it uniformly</li><li>Compatible with most sized cup or bottle allowing blend protein powders conveniently.</li><li>Dimension: 2.1'' x 1.7''Package included: 3 PCS Whisk Balls</li></ul><br><br>

BodunDirect 304 Stainless Replacement Shaker Ball Wire Whisk Mixer Ball Cup Protein Shaker Ball(3pcs)