This is the optional Team Integy Universal Drive Shafts for the Traxxas 1/16 scale E-Revo VXL. FEATURES: Steel construction Factory assembled INCLUDES: Two assembled universal drive shafts Two outdrives REQUIRES: Installation on the Traxxas E-Revo VXL SPECS: Length: 3.8" (97mm) Axle diameter: 0.16" (4mm) jxs 03/18/10 ir/jxs