These are Flo-Control. 3d 4axis machined shock pistons. They utilize the latest in machine technology coupled with the latest in piston technology. No moving parts to deal with, increased rebound via the venturi effect and progressive pack via RCShox' multilevel hole design paired with all top surfaces being "rounded" instead of "chamfered like the competition. results are a piston that allows for less blow-by and super smooth action!

KIT INCLUDES 4 PISTONS