Aluminum shock bodies, spring cups, and spring adjustersFully threaded for rapid adjustmentBlack anodized shock bodiesUpper and lower shock ends includes red anodized aluminum ballsSTS304 black medium springs (1.159kg/51.50mm)3.5mm thick shock shafts Shaft exits through double O-ring sealsEasy load shock seal assemblyFits Gmade crawlers, Traxxas T/E-maxx, Axial Wraith, 1/10 scale crawlers & trucks (such as Clodbuster, F-350, CR-01)