Whiteline Bump Stop BushingWhiteline's signature black bushings are made tough and offer outstanding abrasion resistance, high load bearing capability (4WD's, utes and towing), flexibility, increased tensile strength and chemical resistance to oil, grease, ozone and weathering. Features: Protective plating on all metal components acts as a hard skin that is much tougher than conventional paint allowing this product to withstand the toughest conditions and resist corrosion for