Aluminum double boiler Inner coating: double-layer reinforced non-stick Various charming colors available LFGB, FDA, ROHS Aluminum double boilerDiameter: 16-30cmThickness: 2.0/ 2.5/ 3.0mmInner coating: double-layer reinforced non-stickExterior coating: heat resistant paintingPacking: bubble bag/ color boxVarious charming colors availableLFGB, FDA, ROHS of non-stick coating