Mini Muffin and Cupcake Pans with Detachable Bottom, Anti-Stick Cake Molds Muffin Pan, Giving You Perfect Popping Cakes and Muffins 12 pieces. 1x Muffin Pan. Included components: Mold. CARBON QUALITY - strong 0.4mm thick carbon steel construction on the sides and 0.8mm holes for even heat distribution.