AS Material. Screw On, Spill-Resistant Flip-Top Lid. Easy Carry Handle. Measurement Scale In Ounces And Milliliters Makes Tracking Liquid Intake Easy. Removable Agitator Ball Easily Mixes Powders Or Flavored Beverages. Wide Opening Makes It Easy To Add Ice Or Mixes. Meets FDA Requirements. BPA Free. Hand Wash Recommended.