The Stepper with Slider can used in mini laser cuter, mini CNC mechine and mini printer. It's long trip and large output force. Not only used for DIY, it also can used in education. Specification： •Rated Voltage: DC 4-5V •Rated Current: 500mA •motor Type: 2-phase 4-wire •Stride Angle: 18° •Ball Screw length: 74mm •Ball Screw Diamerter: 3mm •Ball Screw Pitch: 3mm •Slider Trip: 64mm •Size: 90X30mm