This Tamiya 50591 kit supplies five 5mm collars designed to stabilise ball joints in small linkages. The parts are handy spares for keeping a model running cleanly on track or trail.
Collars form the bearing surface between ball studs and link rods, cutting play and friction that can degrade steering feel. Using correct-sized collars helps maintain predictable handling through tighter tolerances.
These 5mm collars fit many Tamiya kits and other models using compatible ball ends. They are ideal when rebuilding worn steering assemblies or when tweaking suspension geometry for improved alignment.
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