304 Stainless Steel Metal Travel Mug Set Tumbler. Elector Polished Inside. Colored Powder Coated Finish on the Outside. Ensure Your Portable Coffee Mug Unbreakable, Rust Resistant, Sweat Free, Non-toxic & Harmless. the Lid is Pop Off, Made of As, Chemical-free. It Comes with a Removable Rubber Gasket. No Snap Top, Wide Mouth Design & Drink Hole on the Top. the Lid Does Not Have Hidden Places to Build Up. You Can Make Logo for Gifts for Company, Family, or Friends