These Stellar tins are made from a high quality 1mm steel with rigid rolled edges which add strength and durability. The tins are available in either a 6 cup of 12 cup size and are suitable for both cupcakes and muffins. The tins have a double layer of non-stick which is guaranteed for 5 years, with the rest of the tin being guaranteed by Stellar for life - built to last! Muffin/Cupcake Features Multi-purpose cupcake or muffin tin 6 or 12 cup available Quality steel Double layered non-stick coating Stellar lifetime guarantee 5 year non-stick guarantee Stellar\'s Ref. MPN: SB56, SB57 Sizes: 6 Cup, 12 Cup PM Red. 977514