Feature: 1. SIZE INFORMATION: You will receive 4 pieces of threaded edged blank coin for engraving. These blank medallions measure approximately 40 mm/1.57 inch in diameter and 2 mm/0.08 inch in thick, making them small and delicate enough not to be a burden when crafting or wearing 2. QUALITY MATERIAL: These blank challenge coin are made of alloy, non electroplated brushed finish. These medallions have reliable quality, elegant surface gloss, not easy to fade, break or deform, suitable for long term use, giving you a comfortable use experience 3. INNOVATIVE FUN: The surface of these medallions is blank and compact, ideal for handicraft lovers; The blank surface is suitable for engraving various patterns or words, you can make some personalized designs on it; But pay attention: after coating the metal, please use like CO2 to mark metal coin; You can also match various hooks, rings, pins, tassels, etc. to make beautiful earrings, necklaces, bracelets and other decorative items 4. PRECIOUS AND HEART WARMING GIFT: You can give these blank medals to friends, family, girlfriend, boyfriend, colleague, co worker, neighbor, classmate, father, groom, friend, military coin collector, etc., which can bring them happiness and make your relationship close 5. INDEPENDENT ACRYLIC PROTECTING: Each engraving blanks coin is independently packed with a transparent acrylic protecting box, which can effectively prevent the product from being scratched Specification: Item Type: Blank Challenge Coin Material: Alloy Diameter: Approx. 40mm / 1.57in Thickness: Approx. 2mm / 0.08in. Package List: 4 x Coin 4 x Plastic Boxes