I-beam track sports car, thickened steel plate, compact structure, various styles, many models, saving time and labor. Hand propelled sports car, electric sports car. Thickened steel wheel guide wheel, simple installation, self-locking screw, enlarged flange, firm and durable, copper core motor, stable speed, high-temperature quenched gear, strong bearing capacity, stable operation and extended service life. Lifting weight: 0.5tons,1ton,2tons,3tons,5tons,10tons Voltage:220V,380V. just tell me your needs, and contact us.