Come and see our amazing products. The 20 oz. tumbler features a stainless-steel construction with a sleek and tapered contour design. The tumbler has a tapered bottom and features a copper lining that keeps beverages hot for up to 12 hours or color for up to 12 hours (24 hours with ice). The double-wall vacuum with copper lining ensures your drinks stay hot or cold longer.Hand-wash only. Do not place in freezer or microwave. Customize the bottle with your company or organization's name, logo, and/or organizational message. Enhance your company image with this useful item. Pls confirm further with us if any query about packing info, inventory status and time schedule.