SAY HELLO TO SAFE SIPPING - The double-layer glass mugs are made of 100% lead-free mouth-blown borosilicate glass, a well-known material for its durability and safety when in contact with water. It keeps hotter and colder than the normal single-walled glass and ceramic mugs. Cool to touch, without burning fingers. ELEVATE YOUR COFFEE EXPERIENCE - Savor the magic of our double-layered mugs! Your drink suspended in mid-air, a captivating sight! Delight in the intricate art of coffee flower drawing, enhanced by the sleek, clear design. Elevate your coffee experience with style and visual enchantment. GREAT CAPACITY FOR DAILY USE - Each of the glass cups holds 12.5 ounces to the rim, which is large enough to nicely go with espresso machines or coffee makers, yet perfectly sized for espresso, tea, coffee, latte, mocha, etc. Plus they are dishwasher and microwave safe. SAFE WRAPPED AND IDEAL GIFT - Arrived broken? NO! Sweese provide thick safe packaging to prevent from breaking. The elegant and stylish glass mugs with gift box packaging could be the ideal gift for your family or friends, especially on special occasions such as birthdays, housewarmings, weddings, parties, Mother’s Day, etc SMALL HOLE DESIGN FOR SAFETY - Our glass coffee mugs also feature a small round hole design on the bottom, which prevents the mugs from bursting during use and allows the glass to breathe during temperature changes. The hole is sealed, so water won't get in, ensuring your safety and enjoyment every time. Order now and experience the difference in your daily coffee or tea ritual!