This premium-crafted shaker bottle is a high-quality, BPA-Free, shaker cup that is marked to a perfect (not too big, not too small) 16 ounces on the side but fills up to 20 ounces when filled to the brim. This is the quickest, easiest way to mix your favorite PUMPD LABS supplements whenever you need to. The cup and lid were designed so that you will get a tight, leak-free fit every time you go to use it. It’s the perfect companion for traveling, school, and gym. This is truly the last shaker cup you will ever need.