Stainless Pro Collection
Stainless Steel Shaker Cup
If you've ever let your protein fester in your shaker bottle for a few days, you know the repugnant odor that will be waiting for you. Introducing Mars Stainless Steel Protein Shaker Cup. Stainless steel does not absorb odor, making it a great option for protein shakers. The stainless steel allows you to quickly and easily wash the smell away. Unlike plastic shakers that will hold the smell for weeks.