Black SV3 mounting kit is ONLY for the Sidewinder ESC with the built in fan.Recessed pocket for holding the ESC in place. Does not block air flow.Recessed switch to reduce accidental turn on/off. Instructions are not included but are available at snappyrc.com and on youtube.Compatible with little to no modification:    Traxxas 2wd Stampede    Traxxas 2wd Slash    Traxxas 4x4 Slash    Traxxas Slash 4x4 LCG Chassis    Traxxas Rally    Traxxas Rustler (with XL5 ESC tray)    Traxxas Bandit (with XL5 ESC tray)    Losi SCTEKit includes:    One mounting plate for the top made of durable plastic.    Two ESC mounting screws    Two switch mounting screws    SnappyRC sticker