SWorkz S35-series front arm mount balance weights
Coming from SWorkz and made for the S35 series of off-road vehicles are brass front-rear arm mounts. Machined from high-quality material and sporting a shiny finish the parts help to add weight to the front end for improved steering response and optimised jump landing. The FR mounts are available as lighter 25g or heavier 35g variant.
Source: MW RC Cars [mwrccars.com]