This item is a Thermos Stainless King Vacuum-Insulated Travel Mug with Handle (16 oz / 470 ml) in the Matte Black/Red Color. Temperature Retention: It is rated to keep beverages hot for 7 hours and cold for 18 hours Insulation Technology: Uses double-wall vacuum insulation to optimize temperature retention and prevent sweating Construction: Made with durable stainless steel on both the interior and exterior. Built-in Hook: Features a "Tea Hook" built into the bottom of the lid to hold tea bags or leaf infusers securely in place. Leak-Proof Lid: Employs a proprietary "Drinklock" sealing mechanism that operates via a simple lever configuration to ensure leak-proof performance. BRAND NEW!