The Dua coffee cup is designed for slow sips and warm hands. Made from double-walled borosilicate glass, it keeps your coffee hotter for longer without burning your fingers. The vacuum-tight silicone seal means no spills, no stress, just you and your brew. Details: - Capacity: 354ml - Material: Borosilicate glass with silicone seal - Double-walled glass to keep drinks warmer for longer - Vacuum-tight silicone seal to prevent spills - Care: Hand wash only (not dishwasher safe)