INSULATED FOOD JAR - Large enough to hold soup, stews or casseroles, yet small enough to fit into your lunch bag, this leakproof, insulated food jar won’t spill or leak and keeps your food items warm for up to 12 hours and cold for up to 24 hours. STAINLESS STEEL THERMOS - designed to last and made from durable, 18/8 food-grade stainless steel, our food jar thermos won’t rust, leak or break and retains your foods full flavor for hours throughout your busy day.