The Gusto Vacuum Tumbler & Slim Can Insulator 350ml is engineered using double-wall, vacuum-insulated construction. This multifunctional on-the-go drinkware doubles as both a tumbler and portable insulator to keep beverages and slim cans chilled. With the Gusto Vacuum Tumbler & Insulator, your drink will stay hot for up to 5 hours or cold for up to 15 hours. Colours: Black and White. Sizes: 154mm(h) x 77mm(d). Features: Double-Wall, Vacuum-Insulated Construction. Multifunctional Design- Both tumbler and portable insulator. Hot/ Cold Retention. Packaging: Bulk. Materials: 18/8 Grade Stainless Steel inner wall with Stainless Steel Outer