Grab life by the fin with this travel mug that reminds you to stop your whining and dominate the tank. This is a double walled stoneware ceramic travel mug created by me in my New Jersey studio. This tumbler measures 3.5 x 6 and ships with a hard plastic lid that has an open and close feature. The double wall insulates your beverage--keeping hot liquids hot and cold liquids cold. This is a large travel mug that holds 16 oz of your favorite coffee or tea.