Beautifully-designed, double-walled containers to keep food chilled or warm for up to 6 hours. Cool to the touch with hot foods and sweat-proof with cold foods. Both the interior and exterior walls are made from #304 Stainless Steel. Easy screw on cap for small hands. Jars holds 10oz / 300ml. Food Jar is 3.25” Diameter and 4.5”H. Handwashing recommended. BPA, PVC, Phthalate and Lead FREE. Fits perfectly into a coordinating lunchbox!