*Discontinued Final Sale*Designed for scale and trail trucks.Anodized aluminum parts.CNC machined delrin shock spring adjust nut.CNC machined aluminum parts for the durability.CNC machined aluminum shock cartridge.Various hole type delrin shock pistons.(2,3,4holes)3.5mm thick shock shafts.Dual O-Ring sealed into the shock cartridge for preventing leak of oil.RSD shock laser marked. What's included:CNC machined & black anodized aluminum shock bodiesCNC machined & silver anodized aluminum shock cartridgesLower shock ends include red anodized aluminum balls.Delrin shock spring adjust nut x 23.5mm thick shock shaft x 2Shock spring x 2Bottle of shock oil x 1All necessary hardware to finish the shocksAssembly instructions x 1 Specs:Length (mounting hole to hole): 100mmShock body diameter: 11mmShock spring diamenter: 15mmShock spring length: 54mmFull shaft travel range: 31mmShock shaft diameter: 3.5mm