Imperative: Your adjuster mounts are easy to strip, lose, or otherwise demolish during a retrofit, but their health and presence is essential. Universal: Standard sizes fit most headlight assemblies as direct replacements for original parts. Older Lights? Don't let your new (heavier) reflector assembly sag with old worn out threaded mounts or ball joints, at this price, its worth replacing them if they're a bit tired. Two Styles: Available in two styles, one for threaded rods and another for ball joints mounts. Type A - Square Yellow Type, Type B - Round White Type. Individual: A quantity of "1x" is for only one piece.