Set of 4 - Double Wall Cold Water Plastic Tumbler w/ Screw Top Lid and Straw, 23 oz. Smoothie Cup Set of 4 - Tumbler w/ Screw Top Lid and Straw, (4 Designs) Double Wall with PVC Insert, 23 oz. capacity, *BPA Free* Quarter-turn lid sealing mechanism Reusable straw stays put and keeps drinks perfectly mixed Hand Wash recommended, Do not microwave