Classic 14 oz. Unbreakable Polycarbonate Plastic Tumblers are made of tough, unbreakable polycarbonate plastic - the same material used in bullet-proof glass! These high-quality clear plastic tumblers are designed to replace fragile glass tumblers, and are sold by the individual piece (each) - no minimums required! 3 5/8" tall x 3 1/2" diameter. Classic 14 oz. Unbreakable Polycarbonate Plastic Tumblers are microwave- and dishwasher- safe (top rack, regular or normal cycles only, no heat dry cycle).