Thermos™ vacuum insulation technology for maximum temperature retention, hot or cold. Keeps hot for 7 hours and cold for 9 hours. Durable stainless steel interior and exterior. Cool to the touch with hot liquids, sweat-proof with cold. Extra wide mouth is easy to fill, serve from and clean. Insulated stainless steel lid doubles as a serving bowl. Full-size folding stainless steel spoon. 50 year guarantee.  Dimensions (LxWxH): 9.4 x 9.4 x 14.2cm.