AR330339 Shock Piston Set (2)This high quality shock piston set provides both replacement parts for your kit supplied items and optional tuning parts for your kit shock absorbers. Includes 2 x 6 hole 1. 2mm pistons 2 x 6 hole 1. 3mm pistons 2 x 6 hole 1. 4mm pistons 2 x blank pistons 2 x shock O ring spacers 2 x shock bottom cap guides Features Strong and durable composite material for long lasting performance and consistent shock action in all conditions Various shock piston