This is Xtra Speed Aluminum Complete Assembled Transmission Gearbox For Axial SCX10. Prevent twisting and buckling of your transmission system caused by modern day LiPo and Brushless power with this aluminum gearbox for Axial's SCX10 by Xtra Speed! *Photos for reference only. Feature: For: Axial SCX10 Material: Aluminum Color: Gun Metal / Red Include: Aluminum Complete Assembled Transmission Gearbox For Axial SCX10 (1 pc) Pinion w/ set screw (1 set)