Thermos vacuum insulation technology virtually eliminates temperature change within the food container by creating an airless space between two stainless steel walls. The result is an insulation layer that performs better than any other. This superior insulated FUNtainer food jar keeps items hot for 5 hours or cold for 7， making it a great choice you can depend on to keep your kids food hotter， colder， and fresher longer.

Constructed with double wall stainless steel， this 10 ounce food jar is virtually unbreakable and built to withstand the demands of everyday use. It features an extra wide mouth which is easy to fill， eat from and clean.

In order to maximize the incredible insulation technology， it is recommended to either pre-chill or pre-heat the food jar just prior to use. This can be accomplished by filling the food jar with cold or hot tap water， attaching the lid and letting it rest for a few minutes. Before you are ready to use， simply empty the water and fill with your favorite food item. Attaching the lid will further increase the thermal efficiency.

The FUNtainer food jar is made of BPA-free materials and is backed by a five-year limited warranty.