The B[ ]X shaker is a high-quality shaker cup with a compartment to store an extra portion of powder and a compartment divided into 3 to store pills of remove the divider to stash an extra portion of protein. There is also a clip on wire mixer to make sure your supplements are properly mixed before you take them. It is made from BPA free plastic and is 100% leak-proof. You can use it every day, store it in the freezer, heat its contents in the microwave and wash up in the dishwasher afterwards. It’s designed for training everyday!