Size Information: You will receive 12 pieces of threaded edged blank coins for engraving. These blank medallions measure approximately 40 mm (1.57 inches) in diameter and 3 mm thick, making them compact and lightweight for easy crafting or wearing. Quality Material: These blanks are made of copper with a non-electroplated brushed finish, offering reliable quality, an elegant gloss, and resistance to fading, breaking, or deformation, making them suitable for long-term use. DIY Fun: The surface of these medallions is smooth and blank, ideal for DIY enthusiasts. They are suitable for laser engraving with various patterns or text to create personalized designs. Please note: when marking metal, a CO2 laser is recommended. These blanks can be paired with hooks, rings, pins, tassels, and other findings to create earrings, necklaces, bracelets, and other decorative crafts. Precious and Heartwarming Gift: These blank medallions make thoughtful starter pieces for handmade gifts for friends, family, loved ones, colleagues, classmates, or hobbyists such as coin collectors. Creating personalized items can bring joy and strengthen personal connections. Acrylic Protection: Each blank coin is individually packed in a transparent acrylic protective box to help prevent scratches and maintain quality. This set of 12 blank coins is ideal for laser engraving, allowing you to create custom patterns or messages for gifting or crafting. Use them to make earrings, necklaces, bracelets, keychains, bag charms, pet ID tags, and other decorative accessories. Each blank comes with a plastic protective case to aid in storage and prevent damage. Specifications: Material: Copper Color: Silver Size: 40 mm (1.57 inches) in diameter, 3 mm thick Package Contents: 12 x Blank Coins Note: Light reflection and differences in display screens may cause slight variations between the color shown and the actual item. Measurement may vary by +/- 1-3 cm.