The Harley-Davidson metal retainers are almost always this dark(parkerized) color. Those shiny "zinc" metal, shoe retainers are junk. The aftermarket poly(plastic) replacement shoes are many times too short, so the retainer can't hold it effectively. The steel chain adjuster itself, (header photo) is welded on the lower backside - and is designed to keep the slack out of your chain and withstand the jerking and pulling from shifting and acceleration/deceleration - and not break off, and blow out your primary case. Shit ! These good (H-D) adjusters are getting hard to find, so I buy them when I can. We'll install a good set in Kevin's KH, 'cause I know he's gonna twist the throttle on that sucker !