... the custom Material: 304s/s inner, 201s/s out Stainless steel food warmer lunch box Material304s/s inner, 201s/s outer ... promotion; advertisingconvenience for driving, picnic, travel, sportFeature-Double wall stainless steel construction, unbreakable & durable-FDA & LFGB text, the most healthy ... put in dishwasher to clean -Don't put dry ice or carbonated drink to avoid high pressure causing leakageOur ...