Cooler Shaker - locks in food safe gel capsules between the double walls. When Cooler Shaker is placed into the freezer in just a few hours the gel is frozen locking in cooled air between the frozen expanded gel capsules. Add your chosen drink or mix. The cooling system will keep your drink colder for longer.

Of course all the usual features of ShakeSphere as standard. Can puree soft fruit (do not add water or powder until fruit is puree).