VEXpro VersaPlanetary Lite Gearboxes - VEXpro 217-5823, VersaPlanetary Lite base kits include their output shaft, output housing, input housing, assembly hardware for a 0-stage or 1-stage gearbox, and all necessary motor plates and mounting hardware.The VersaPlanetary Lite is perfect for the FIRST® Tech Challenge and low-stress FIRST® Robotics Competition applications. It uses a plastic housing and ring gear, made from 30% glass filled Nylon. In addition to its high wear resistance and tensile strength, glass filled Nylon dissipates heat better than other commonly used plastics. VEXpro 217-5823 VersaPlanetary Lite Base Kit, 1:1, 3/8\" Hex Output