Keeps foods cold for up to 24 hours and hot for up to 14 hours (Food Jar); Keeps drinks cold for up to 18 hours and hot for up to 7 hours (Travel Tumbler) | | Durable 18/8 stainless steel construction on both containers | | Leakproof lids; Food Jar lid doubles as serving bowl | | Exteriors stay cool and sweatproof | | Dishwasher safe; top rack recommended | |