The Ascend glassware range features stemware with strong, clean lines, and hiball and tumblers with heavy bases punctuated by a subtle conical form. This glassware is mouth - blown and hand - finished, making each piece unique. Care and use: Before using for the first time, remove all packaging and wash in warm, soapy water. Dishwasher safe. Do not subject to sudden changes in temperature. Volume: 310ml