VACUUM INSULATED - This thermo for hot food kids is designed with a double-lid and double insulation for super effective temperature control. Keeps your food for 6-8 hours cold or for 3-5 hours hot. KID-FRIENDLY DESIGN: The 9oz size is perfect for an average child's meal. The cute print on the food jar with an embossed feel makes your kids love eating with it. LEAK PROOF - The lid was designed with a softly curved edge for comfort with a tight-fitting gasket seal to minimize leaks and bad smell. WIDE MOUTH - Lightweight and compact, The wide mouth is easy to fill, eat from and clean, washing by hand is recommended. WIDE MOUTH - Lightweight and compact, The wide mouth is easy to fill, eat from and clean, washing by hand is recommended. Food Jar