Ferruled keychain, sold without a ferrule (because you already have the ferrule you want to use it with).  

This product is an assembly.  It screws together and allows you to install your own ferrule.   (We recommend bonding it together with a drop of super glue on the screw so it won't come unscrewed in your pocket.)  Keychain comes with a lasered titanium fob.  Fits both shorty (1") and standard (1.3") ferrules.  

Keychain (upper) element is stainless steel.  Base piece is aluminum.