Product Description Specifications 350ml Stainless steel thermal cup, with double layer and copper vacuum insulation. Features: Double walled travel mug 350ml capacity Copper vacuum insulated Maintains heat and cold for a longer time, reaching 8 and 24 hours respectively Spill resistant thumb slide open/close Individual box Decoration Position: Side Print Size: 25 x 25 mm Product Materials: Stainless Steel Capacity: 300ml - 499ml Features: Double Walled Material: Stainless Steel