Smart Shake has built-in cans where you store several servings of nutritional supplements for example protein, creatine, vitamins, capsules, pre- & after workout products.• With Smart Shake you don’t have to bring along bags with servings, because everything is stored in the shaker! • Advanced anti-leak technology makes the cap & lid safe for hot & cold drinks • Extra coarse thread on the lid • Revolutionary concave hexagon strainer eliminating powder lumps & giving your drinks a perfect viscosity • Non-toxic plastic, BPA- & DEHP-free • Safe for freezer, dishwasher, microwave oven & hot liquid, up to 120 °C (248 °F) • Recyclable & made from non-toxic plastic