Built 30-Ounce Double-Walled Stainless Steel Tumbler in Black Marble

The Built Double-Wall Stainless Steel 30-ounce. Mug will keep your favorite on-the-go beverages hot for four hours or cold for eight hours. It features a curved design that fits in most vehicle cup holders. The Built mug comes with a screw top that provides a secure fit and a slide lid to help keep beverages at optimum temperature and prevent spills. Hand washing is recommended.