Twist 'n' lock™ system. 2.25" D jar fits inside BlenderBottle Classic & SportMixer bottles. Great 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. Dishwasher safe, freezer safe. BPA & Phthalate free. U.S. and International Patents Pending. Includes: (2) 150 cc cup with lid & (2) Twist n' Lock™ pill tray.|Includes: (2) 150 cc cup with lid & (2) Twist n' Lock™ pill tray.