Welcome to shkingdo.vn!!!No smell, non-toxic, anti-dust, durable, impermeable, easy to clean.Non-toxic,it is environmentally friendly.You simply have to place the pan on a cookie sheet,and then bake according to recipe instructions.Steel has excellent heat regulation properties, so when you follow the recipes accordingly non stick baking is assured.Specification:100% brand new and high quality!Material: Carbon SteelColor: Silver,BlackSize: 2 Groove(38*16.4*2.4cm), 3 Groove(38*24.5*2.4cm), 4 Groove(38*33*2.4cm)Package Include:1pcNote:Please allow 0-2cm error due to manual measurement.Please understand that colors may exist chromatic aberration as the different placement of pictures.