Double-walled vacuum bottle made of stainless steel with 'Quick-Stop' seal and combined lid and mug. All bottles except the silver ones come with a powder coated outer surface. Offers excellent insulation and low weight without sacrificing durability. The black Vacuum Bottles are delivered with an extra stopper. Features: Stainless Steel Volume: 11.8 oz Dimensions: 2.7" x 8.3"