Package content: It includes 30pcs key rings with chain and 30Pcs open jump rings, separate packaging. The key ring design is easy to install to make your DIY project simple.Size: Ring diameter Approximately 1 inch, total length about 2 inch; With these high quality metal parts, you can create your own key chains to give as gifts, sell or promote your company or organization.Durable material: Made of high quality silver-toned nickel metal, strong and durable, simple. Great workmanship with the ring, smooth surface and edge, will not scratch your hands and stuffs.Sutable for DIY: You do not need to buy additional parts.You can use your imagination to DIY your own keychain, make for phone, bag, purse, and other accesspries.Easy to use: Each key ring chain comes with a separate jump ring, you can attach pendant, tags and other small accessories easily. you don't have to put extra effort to open before connect something on it.