The Classic Unbreakable Drinkware Set is made from unbreakable polycarbonate. These plastic drinkware set offers glass-like beauty and lasting worry-free strength. Set includes 4 Classic Unbreakable Polycarbonate Plastic 14 oz. Tumblers, 4 Classic Unbreakable Plastic 18 oz. Tall Coolers and a 54 oz. Unbreakable 54 oz. Polycarbonate Plastic Pitcher. Additional glasses are also available. Polycarbonate plastic glasses and pitcher are dishwasher safe (top rack, regular or normal cycles only, no heat dry cycle).