Model : BW-1114 Dishwasher, oven, freezer, and microwave safe Oven safe to 300 degrees F Fully vitrified Lead free This World Tableware Basics 11-1/2" ounce mug is stackable. It has an elegant design and is made from porcelain with a bright white color that goes well with any dinnerware. Model #: BW-1114 Dishwasher, oven, freezer, and microwave Oven to 300°F Fully vitrified Lead free Non-porous finish for low water absorption Resistant to chipping and breaking Polished foot