Material: These keyring rings are made of durable metal alloy with nickel plated ,the smooth surface with silvery metallic luster. They can be used in humid environment will not rust or fadeSize (approximately): The diameter of each circular split ring is 25 mm, with 5 links, the total chain length is 25 mm, and the diameter of the split jump ring is 8 mm.Each key ring chain has a separate jump ring, you don't have to trouble open it before connecting anything.Simple to use: The key ring with chain and connector is convenient for you to fix keys, ornaments, pendants or other accessories on it. The durable key ring can tightly fix these accessories.Versatility: The key ring can collect your door keys, garage keys, you can also attach beads, small dolls, toy models, mini cubes or tags to the jump ring, and then attach them to the key chain to make a unique pendant .