Healthy frist : Our coffee mugs have a smooth rims to eliminate lip discomfort,BPA free,lead free,foood grade materialExcellenr quality:High Quality made of durable glass that is ideal for everyday use,very thick material, Can be heated directly by inductionEasy use easy clean:100% dishwasher, fridge and microwave safeClear Glass 16oz Large Wide-Mouth Mugs With Handle For Coffee, Tea, Soup, Cereal Glass Cup Mug (Set of 6)