Staying healthy and prepared is simple with SmartShake, a smart new take on the original shaker cup. It"s three compartments conveniently store powder, pills, snacks or keys - the possibilities are endless. The patented Snap-On strainer will easily mix powdered drinks, sauces and dressings without clumps or lumps. The strainer is designed to mix the thickest ingredients and it is especially perfect for making scrambled eggs or omelets. Made of high-quality BPA-free plastic that is safe in the dishwasher, microwave and freezer. 20-ounce capacity to the rim of the cup, measurements up to 12-ounce. With two or more cups you can mix and match the interchangeable pieces to create a unique multi-colored cup.