JayCee billet spring plate retainers assist keep the suspension stable at high speeds and avoid any pull-in on the hard drag racing launch. The JayCee retainers are made of 6061 aluminum that has been CNC machined and polished to a high luster finish. They are anodized and laser-engraved with the JayCee logo after polishing. A CNC machined bronze bearing bushing is inserted as the finishing touch. Everything was made in the United States. Sold in pairs.