The BPI Sports Patriot Shaker is a USA manufactured high quality shaker cup that is marked to 20 ounces on the side and fits 28 ounces to the brim. Embossed ounce and milliliter markings make it easy to measure your ingredients. Now you can mix smooth, lump-free drinks at home, at the office, or on the go! Secure, screw-on lid. Wide opening for ingredients. Large drink/pour spout. Snap spout helps prevent spillage. Engineered to get a tight closure every time to prevent leakage. Base fits in most drink holders. Easy to clean. Dishwasher safe. Versatile. Mixing grate included.