1. Premium Brass and Copper Material: Made of durable 3mm thick brass and copper with excellent rust and corrosion resistance, providing an ideal base for custom engraving.
2.Elegant Threaded Edge Design: Features a 40mm diameter with finely crafted threaded edges, enhancing its premium look, perfect for creating high-end challenge coins or commemorative pieces.
3.Practical Set Quantity: A set of 30 pieces ensures sufficient supply for various DIY or small-batch production projects, catering to diverse creative needs.
4.Each set of Challenge blank coins comes in a separate acrylic box, providing protection against oxidation and damage.
5.Versatile Applications: Ideal for personalized engraving, suitable for birthdays, weddings, anniversaries, and other special occasions to create unique gifts or keepsakes.
6.DIY Use: The blank surface is suitable for laser engraving various patterns or words, you can make some personalized designs on it， You can also match various hooks, rings, pins etc. to make beautiful earrings, necklaces, bracelets and other decorative items