The Bullet Rocky Vacuum Tumbler 20oz features double-wall stainless steel construction with vacuum insulation. Use it to keep your favourite beverages hot for five hours or cold for 15 hours. The Bullet Rocky Vacuum Tumbler has a press-on lid with a slide closure for easy use even when you re on the go. Colours: Black, Blue and SIlver. Sizes: 169mm(h) x 87mm. Features: Made from rugged stainless steel, Double-wall stainless steel construction with vacuum insulation, Easy-to-use press-on lid with slide closure, Keeps drinks cold for 15 hours or hot for 5 hours, Hand-wash only, Care guidelines included. Packaging: Bulk Packed. Materials: Stainless Steel