Rubbermaid Shaker Bottle, 28 Ounce, Black 1906642 Unique five-sided paddle ball shakes inside the bottle, for breaking up protein powders, drink mixes, powdered supplements, water and liquids Protein shaker made with Tritan, for a crystal clear bottle that resists stains and odors Shaker cup with a twist lock lid stays put during shaking, mixing and storing drinks and beverages Dishwasher safe and BPA free Convenient finger loop for easy carrying