Use the Metabolic Nutrition Shaker Bottle to mix up any of your favorite protein powders, preworkouts, or anything else that needs to be mixed well. Shakers are perfect when you're at work or in the gym and do not have access to a blender.The shaker bottle has a removable basket strainer so you can blend any protein powder we carryThese shaker cups have a Matching Color Metabolic Nutrition logo on one side to match lids and stainers