This high quality Shock Piston Set provides a range of shock tuning options for your ARRMA vehicleFeatures:Tough and durable composite material for long-lasting performance and consistent shock action in all conditions - Precision manufactured to ensure smooth and consistent shock performance - Three different tuning options provided - Four of each different specification piston provided giving you multiple tuning options - Hole diameter markings on the face of the pistons provide simple identification SPECIFICATIONS 8 hole pistons with 1.4mm diameter holes 8 hold pistons with 1.5mm diameter holes Blank pistons with 8 drill guide dimplesIncludes:4 x Shock Piston (8 x 1.4mm) 4 x Shock Piston (8 x 1.5mm) 4 x Shock Piston (Blank with 8 drill guide dimples)