Associated brand pair of Factory Team optional Shock Springs with Gray Firmness Rating for the RC10TC7 Factory Team Touring Car Kit. FEATURES: Steel construction, black in color with section of gray tubing to indicate firmness rating Fits front or rear shocks Slightly softer than stock #31717 (15.9lb) springs YOU WILL RECEIVE: Two 15.0lb/in Shock Springs with Gray Tubing SPECIFICATIONS: Compression Rate: 15.0lbs/in Length: 0.96 (24.5mm) jxs 03/23/16 ir/jxs