Features: Male Du Pont line male head 10 cm High quality 130 motor, acceptable voltage 5-10 V High-quality Du Pont wire welding, fixed by heating melt Good wheel grip DC geared motor with a reduction ratio of 48: 1, dual-axis can be equipped with a speed measuring code disk, which is convenient for speed measurement DC deceleration strong magnetic motor, 48: 1 reduction ratio, dual-axis motor. Motor parameters: Working voltage: 5-10 V Weight: 70g Wheel diameter: 66mm Package included:1 * Small Hammer TT DC Motor With Wheel 10cm Male Plug Cable