1.simple and match all kinds of drops and small projects. Great workmanship with the ring, smooth surface and edge, will not scratch your hands and stuffs. 2.that will meet your needs for daily use or craft projects. 3.Easy to use- Each key ring chain comes with a separate jump ring,you don't have to put extra effort to open before connect something on it. 4.Multipurpose- It's practial for making key ring pendant,bags pendant and other accesspries. You can use your imagination to DIY your own keychain, make pendant for phone, bag, purse,etc. 5.Suitable for home, car, office attachment and DIY accessories; Use to organize small keys, hang cards, ID tags and other hand tool, make arts and crafts project, etc. colour:Silver Material:iron size:Ring diameter:25mm chain length: 22mm jump ring diameter : 8mm Package Contents: 400 x key rings with chain 400 x open jump ring Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.