Supplements, snacks, pills, and liquid—all in the same bottle. Featuring the BlenderBall® wire whisk and unique Twist n’ Lock™ containers, the Met-Rx BlenderBottle® ProStak® is the all-in-one solution for the serious athlete. Say 'goodbye' to lumpy protein shakes and 'hello' to smooth, great-tasting drinks. Our patented mixing system uses the BlenderBall® wire whisk—found only in BlenderBottle® brand shaker cups—to mix even the thickest ingredients as you shake. Integrated with the StayOpen™ flip cap, the adjustable carry loop lets you hold more when your hands are full and offers a convenient place to attach keys while at the gym. Made from only the highest-quality materials, BlenderBottle® brand shaker cups are—and always have been—BPA and Phthalate free. The ProStak’s unique interlocking jars have individual lids, making it possible to carry supplements, snacks, and more—with or without the bottle. With a quarter turn, the Twist n’ Lock™ jars can be quickly attached or detached from the bottle. The covert pill tray locks into any jar lid, allowing you to carry pills and powders in the same jar.
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