These Associated Factory Team 13mm shock pistons are a direct factory replacement for 13mm shocks, featuring a 2x1.8mm hole configuration with a 2.0mm overall piston size. Sold as a pair, they are designed for use with Associated RC-10 B-series and T-series platforms. The labeled sizing on each piston makes identification and tuning straightforward when swapping between different piston configurations. Features: 13mm diameter pistons 2x1.8mm hole configuration 2.0mm piston size Sold as a pair Size labeled directly on piston face 7/7/26 cs