BlenderBottle ProStak Twist n’ Lock Storage Jars 4-Piece Expansion Pak, Black

Expand the storage of your Blender Bottle ProStak shaker cup with three additional jars and a Twist n’ Lock pill tray. Extra 100cc and 150cc jars double the initial capacity of your system, while a large 250cc jar offers ample room for even the largest protein, meal replacement, and on-the-go nutrition needs. Carries your protein powders, vitamins and pills, supplements and more. Durable, BPA- and Phthalate-free jars. Compatible with any Blender Bottle ProStak shaker cup.