CAC China PRM-10-P 10-Ounce Porcelain Round Stacking Mug, 3-1/4-Inch, Super White, Box of 36 Stackable mug Porcelain, super white, bright white Modern and trendy for hospitality and foodservice industry Durable china; Break-resistant, chip-resistant and scratch-resistant with normal use Oven, microwave and dishwasher safe