The product is a planetary gearbox with a gear ratio of 10:1 and a backlash of 7 arc-min. It is designed for use with a φ8mm Nema 23 stepper motor, featuring an output shaft diameter of 14mm and an input shaft diameter of 8mm. Made in China, this high-quality gearbox is ideal for industrial automation and motion control applications that require precise gear transmission and efficient mechanical power transmission. The planetary gearbox offers excellent performance and reliability, making it a valuable tool for various industrial processes.