Key features: cup size: 6.5 cmdiameter: 9 cm, volume: 250 ml silicone band made of high-quality reusable glass saves nature  Recommended use: Dishwasher and microwave safe. When washing by hand, we recommend using a mild detergent. Recommended temperature – 20 °C /+ 100 °C Composition: Borosilicate glass and platinum silicone. Color: transparent, gray Dimensions: diameter - 9 cm Material: Glass, silicone Material type: glass, synthetics