The 20 oz Polar Camel® Stainless Steel Insulated Ringneck Tumbler is designed to maintain drink temperatures for hours, whether hot or cold. Its double-wall stainless steel vacuum insulation ensures beverages stay at the desired temperature. With a narrower bottom, it fits snugly into most cup holders. This tumbler is engineered to be 2X more heat and cold resistant compared to regular travel mugs and is free from BPA and lead. Crafted from 18/8 gauge stainless steel, also known as type 304 food grade, it assures durability and safety. Dimensions are 6 7/8″ in height and 3 3/8″ in width.