These are upgraded aluminum pushrods for the Traxxas REVO 2.5 and 3.3 suspension systems. Red anodized for cool looks. A full set of these (2 packages) will reduce the weight of your REVO by 31 grams (1.2oz). If you are using the P2 rockers, you will need to install the small red spacers from the rocker arm package. Contents: (2) aluminum pushrods w/ rod ends installed