【Superior Quality & Durability】 Our muffin tray is crafted from 100% heavy-duty carbon steel. 6-cup muffin mould for baking tray ensures exceptional heat conduction and even baking. 6-Cup Muffin Tray for Baking BPA Free Non-Stick Carbon Steel Cupcake Tray, 500°F Heat Resistant, Microwave & OTG Oven Safe Cupcake Mould for Baking.