Twist n' Lock system BPA and Phthalate free Fits inside BlenderBottle Classic & SportMixer bottles Freezer and dishwasher safe U.S. and Foreign Patents Pending GoStaks are a smart and sleek advancement in portable nutrition. Durable jars secure tightly to carry powders, vitamins, supplements, snacks and more. Whether you pack pre-, intra- and post-workout supplements to the gym, or simply need a versatile system for snacks and small items, the GoStak has you covered.
