This is the Holmes Hobbies Torquemaster Sport Micro Brushed Motor. Designed with performance in mind the Torquemaster Sport Micro uses premium components and high quality construction making this an excellent performance option for micro crawlers such as the Axial SCX24. The larger 050 size motor housing provides increased torque density and higher efficiency over most stock motors. Available in multiple turn counts the 44T and 55T motor gives you a noticeable boost in wheel speed while the 66T option offers a high quality, more efficient replacement for stock turn motors. Package includes one Torquemaster Sport Micro brushed motor with metal pinion gear.