BlenderBottle ProStak Expansion Pak, Pebble Grey, 100 + 150 + 250 ml

The ProStak Expansion Pak is an add-on set for the BlenderBottle ProStak system, here in pebble grey. It has three jars (100, 150 and 250 ml), each with its own lid, and a pill tray that locks into a jar lid. The jars lock onto each other and onto a ProStak bottle with the Twist n' Lock mechanism, just like the jars that come with the ProStak, and you can also carry them separately. Use them for powders, snacks, vitamins or capsules. BlenderBottle says Expansion Paks also fit inside the Pro45 bottle. The shaker itself is not included.