The Optimum Nutrition Gainer Shaker provides a 1000ml capacity complete with a Wire Mixing Ball. Designed for all our Serious Mass users who know the importance of a serious sized shaker when mixing a serious sized shake! Available in Jet Black with the Optimum Nutrition logo embossed in White on one side with a matching White Flip-Top Cap. Additional features include a leak-proof, screw-top lid. The Shaker is BPA and DHEP Free.