The Strauss Dual Shaker has an innovative and unique design that brings you the capacity to store 700 ml total (350 ml per side). The double compartments allow you to carry one shaker instead of two and save time by prepping your drinks only once. The dual compartments help you to multitask and store your pre and post workout in the same shaker without even mixing them!! You can also fill one side with your favorite protein, sports drink on one side and ice on the other side to keep the liquid cool for a long time without diluting them. The compartments can also be used to store, snack food, pills, keys or any other essential stuff.