12 oz. (354 mL) coffee mug with black matte exterior and glossy color interior. Made of 100% Ceramic Stoneware. Single wall. Hand-wash only. Do not microwave. Designed for use with hot and cold beverages. Note: Blank pricing for ceramics is the same as decorated due to special packaging required for all shipments. *24-hour rush service only applies to catalog quantities up to 288 units.