Le Creuset Botanique Espresso Mugs (set of 4!) Brand new in box Premium stoneware is designed for everyday use Colorful glaze is nonporous, non-reactive and resistant to chips, scratches and stains Virtually non-stick glazed surface easily releases food for quick clean-up, and resists cracking and crazing Superior heat retention keeps food warm or cold for serving Safe for freezer, oven, microwave, broiler, dishwasher and metal utensils