Pack your kids the coolest lunch around...or the hottest! It's easy with the FUNtainer 10oz Thermos Food Jar. Made from stainless steel and featuring vacuum insulation technology, this thermos keeps hot food hot for up to 5 hours, and cold food cold for up to seven hours. That's plenty of time to show off its cool design. It's perfect for school lunches, field trips, ballgames, and other all day events. The next time you send your kids out into the world, be sure they bring the best lunch on the block.