This tumbler is an excellent choice for daily use to keep 20oz of your favorite beverages hot or cold thanks to the double-wall insulation. Meanwhile, the stainless steel construction provides excellent durability and it’s dishwasher safe for added convenience. Materials: stainless steel [body], plastic and rubber [lid] One size: 20oz [0.59 l] Rounded corners Vacuum insulated steel body with a clear push on lid with a rubber gasket Glossy finish