Durable MetalMade of high quality metal with silver nickel surface, excellent rust protection, strong and durable. The good hardness makes it not easy to break out.Package contents: The pack contains 100 pieces key rings with chain and split rings. The ring diameter is 25 mm, the chain length is 23 mm. The split ring diameter 8 mm is the perfect size to meet your different needs.Widely used: With these key rings with chain, you can make your own bunch of keys yourself, make mobile phone , bag, wallet and other accessories. The only limit is your imagination.Easy to use: each key ring is equipped with a chain and a split ring, so you can open and close it conveniently. You can also easily connect other accessories together.Buy without riskExcellent key rings, 30 days return policy and 12 months warranty. If you have any problems with our key rings, please feel free to contact us.