Package Information--meet your daily DIY making needs, perfect for DIY enthusiastsHigh Quality Material--2.5mm thick blank are made of iron, and 3mm thick blank are made of Iron, not easy to break or deform, suitable for your long-term useDIY Design--Great for stamping, , laser engraving and engraving projects, you can personalize blank coins with such as patterns and text for meaningful giftsWide Usage--Blank coins can be made into beautiful badges, charms, necklaces, bracelets, customized key chains, pet ID tags, souvenirs and so on as gifts for friends, family, girlfriends, boyfriends, coworkers and so onsize: Diameter 4cm, thickness 2.3mmMaterial: Metalcolour: MulticolorPackage Contents: 18 x metal stampsOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.