16 Ounce Insulated Tumbler TherMax double wall vacuum insulation. Unbreakable stainless steel interior and exterior. Comfortable rubber grip. Keeps liquids cold 9 hours hot 4 hours. A trusty tumbler to take on the road. The stainless steel construction of this 16oz Thermos tumbler makes it virtually unbreakable, while its convenient size fits in most automotive cup holders. The cooltouch exterior and comfortable rubber grip ensure smooth sips. Sweat proof design prevents water rings.Measures approximately 318 x 318 x 8.5 inches Black Stainless Steel.