Double Wall Stainless Steel Travel Thermos, Vacuum Insulated, Copper Lined, 10oz. Capacity - Matte Black 10oz. Double Wall 18/8 Stainless Steel Copper Vacuum Insulated Thermal Bottle. Enjoy 16 hrs. Cool / 8 hrs. Warm. 2 Piece Threaded Lid with Integrated Pour Spout and Drink Cup. BPA Free Copper plated inner wall prevents heat from entering or exiting the bottle by thermal radiation. Dimensions: 2.25" base diameter, 1.3" mouth opening, 8.5" height (with lid) Hand Wash Recommended, due to Individual Dishwasher Temperature and Abrasiveness Variations.