DURABLE STRUCTURE: The metal keychain adopts electroplating process, which does not fade, and the surface and edges are smooth. The bold chain is stronger and more durable than the general chain on the market.PACKAGE CONTENT: 50 X shiny keychain with chain + 50 X embossed keychain with chain + 100 X open jump ring.RING DIAMETER: 1 inch / 25 mm. Link length: 27-32 mm, diameter of open jump ring: 7 mm.COMES WITH JUMPER RING: With a separate jumper ring, it is convenient to attach your parts and easily carry out your DIY projects.WIDELY USED: These key rings with chains are very suitable for DIY, keychains, slings, crafts, pendants, resins, jewelry making, etc.