| Maryland 16 oz. Tumblers - Set of 4 Tervis Tumblers are made of high quality polycarbonate - the same durable material found in bulletproof windows and airplane windows. Polycarbonate is ten times more impact resistant than other plastics. This double wall insulation drinkware keeps hot drinks hotter cold drinks colder and ice cubes last up to three times longer. Cups are microwave and top-rack dishwasher safe to provide years of enjoyment. Comes with a Lifetime unconditional guarantee
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