With weighty bases and crystal clarity, our acrylic drinkware provides break-resistant convenience while maintaining the look and feel of traditional glassware. Durably crafted for indoor/outdoor use. 100% acrylic For indoor/outdoor use BPA free Resists breaking, scratching and chipping Top-rack dishwasher safe Not for use with hot liquids Not suitable for microwave or freezer use Frontgate exclusive. At Frontgate, our primary focus is quality. We guarantee that every product we sell will stand up to the supreme test – our customers' satisfaction. To learn more about our policies, visit our Shipping & Processing, Returns & Exchanges and Warranty & Price Guarantee pages.