Material: Stainless steel. Sturdy, durable, can be directly pasted on the magnetic base without other stickers. (These are not magnets, they just react to magnets.) | Size: Length and width 26 mm (1.02 Inch), deep 5 mm (0.196 Inch). | Uses: Perfectly matched with the magnetic palette, used for resetting broken cosmetics, hot pouring and cold processing cosmetics or DIY cosmetics and other handicraft items. | Package contains: 20 Pieces Length and width 26 mm empty square metal pans. | DIY: You can also use these pans to mix your own colors, DIY various blushes, powders, eyeshadows, lipsticks, etc. Put in your own palette to create your own shadows.