Our double walled glass coffee mugs feature an optical levitation effect and come with either a bamboo or glass lid. The borosilicate glass offers high strength and heat resistance, keeping drinks hot or cold for longer. Perfect for coffee, tea, and more. Dishwasher and microwave safe. A great gift idea. Features 1. Double Wall Glass Coffee Mugs: The double walled glass coffee mugs with handle have an optical levitation effect that makes the drink seem to be floating in the water cup, so that the glasses espresso cups catch the eye of every visitor. We provide two types of cup lid( bamboo lid and glass lid) for you choose. 2. Keep Your Drinks Hot : Thanks to the double wall design, our clear glass coffee mugs help prolong the freshness of your drinks. The 250 ml/350 ml/450 ml coffee mugs keep your beverages hot and cool for longer so you can take your time and enjoy them to your heart's content. 3. Quality Borosilicate Glass : Our insulated coffee mug with handle are made using thick borosilicate glass that offers high strength and heat resistance to make sure it can handle daily use. Our coffee mugs are clear and transparent while being simple to clean. 4. Easy To Clean And Use: These double wall glass insulated mugs are microwave safe so you can quickly reheat your drinks and dishwasher safe to make cleanups a breeze. They are just right for enjoying tea, espresso, latte, coffee, cappuccino, and more. 5. Thoughtful Gift Idea : Whether you're looking for a Valentine's Day gift or housewarming gift, our insulated glass coffee cups have you covered. They make the perfect gift for girlfriend, mother, father, brother, sister, friends, and co-workers on any occasion you have in mind. Specification Material: High Borosilicate Glass Color: Transparent Size: 9 x 8 x 5 cm, 12 x 8 x 5 cm, 15 x 8 x 6 cm Weight: 140 g, 180 g, 232 g Capacity: 250 ml, 350 ml, 450 ml Package Include: 1 x Glass Cup 1 x Bamboo Lid or 1 x Glass Cup 1 x Glass Lid