Details Take your home glassware to the next level with these beautiful, sepia-toned glass tumblers. Made from heat-resistant glass, and safe in the microwave and dishwasher. Set of 4 Made from heat-resistant glass 2.8" D x 3.7" H x 3.1" W / 12.5 oz Maximum temperature differential: 120 / 248 Microwave and dishwasher safe Do not overheat in the microwave or heat without water. Do not use abrasive cleansers or steel wool. Sudden temperature change may break or shatter the product. While the glass is hot, do not pour cold liquids into it and do not place it on a wet cloth or a wet surface. Made responsibly in Japan