Tumblers are scratch resistant, dishwasher safe and are made with durable plastic. Each set comes with 4 twenty ounce cups. Ideal for outdoor use such as picnics or camping and also make a great addition to dorm rooms. Can be used over and over again. Colors vary and can include bright blue, neon pink and neon green. Each set comes packaged in a net bag with hang tag. Tumblers measure 3 1/2" x 5 1/2". Can hold up to 20 ounces.