Powder coated stainless steel 24 oz double wall tumbler with handle and a cork bottom. The cup's built-in cork bottom serves as a coaster and prevents the cup from sliding around on smooth surfaces. Comes in a variety of colors, including black, gray, navy, and white. Keep drinks hot for up to 8 hours and cold for up to 12 hours. With its standard fitting design, you can take your insulated java mug with you wherever you go. This tumbler will fit in virtually any car's cup holder. The travel mug diameter is under 3 inches, so it will fit in virtually any car's cup holder. This item does not contain any BPA, phthalates, lead, or other harmful chemicals. They are constructed of food-grade materials that have been FDA-approved and passed California Proposition 65.