NEVER BURN AND INSULATION:Double wall design can prevent from burning hand,keep your beverage hot while keeping your hands coolHEALTHY AND DURABLE GLASSWARE:Hand blown borosilicate glass lighter than the normal glass,but durable and stable.100% lead-free,BPA-freeKEEPS YOUR COFFEE HOT FOR LONGER:Double walled,hand blown glass insulation keeps your coffee hot and your hand cool.No sweat! Also works great for your favorite icy cold drink.MICROWAVE AND DISHWASHER SAFE:Safe for dishwasher and microwave,freezer use.Borosilicate glass is easy to clean and built to last.ELEGANCE WRAPPED AND IDEAL GIFT:The elegant and stylish clear glass mugs with gift box packaging as the present you just can’t wait to give or keep for yourself!30 DAYS FREE REPLACEMENT:Customer satisfaction is CnGlass top priority.If you are not satisfied with our clear coffee mug,we promise to offer a replacement or refund.Buy it with confidence please.