Made of steel metal the 1/2" small key rings are split rings. They are great designed hardware fastener for your keys, small accessories, tools, straps and lanyards etc. More Key Ring Selections Available: Please Click Main Menu - Key Ring Supplies Beads or Metal Balls Style: Beads or Ball Key Chain Supplies Stainless Wire Style: Stainless Cable Wire Key Chain Supplies Keychain Style: Keychain Supplies Strap Style: Strap Rings For Keys Great Add-On: Easy To Add-On-More Universal Cell Phone Strings Custom Keychains: A variety of custom key chain size, materials and combinations available - call.