Features 1. Our double glass wall design ensures much superior heat insulation than single wall cups and ensures your hands stay comfy. It also prevents condensation so you'll never see those annoying rings at the bottom. An ideal choice for a variety of drinks such as hot or iced tea or coffee, juices, shakes and more. 2. Handmade by our artisans using tough borosilicate glass and food-grade silicone which are BPA free and naturally non-reactive, ensuring your drink tastes exactly as it should. 3. Our insulated coffee cups are made using thick glass that offers high strength and heat resistance can withstand temperatures from -20 to 130. 4. Rather than other open lids that are susceptible to spills and loss of heat, this mug comes with a durable silicone lid. The ring around the lid allows it to close tightly And reducing heat loss and spillage. 5. Easy to clean and use: these big coffee mugs with lids is dishwasher safe to make cleanup a breeze. They are just right for enjoying tea, espresso, latte, coffee, cappuccino. Specification Material: Silicone, Glass Color: Red, Green, Blue, Purple, Orange, Brown, Black Size: 9 x 16 x 6 cm Weight: 265 g Capacity: 350 ml Package Include: 1x Coffee Mug