These SWORKz shock spring adjust nuts are metal replacement hardware for tuning preload on 13mm shocks in the 1/10 scale platform. Sold as a set of two, the knurled outer edge allows for grip when dialing in spring tension. They are finished in black and include a small detent tab for indexing. Features: Fits 13mm shock bodies Knurled grip for easy adjustment Black finish Set of 2 7/7/26 cs