Small size,light weight. Embedded in the work front panel or mounted on the carriage. Tubes are easy to be replaced in flexible operations. It is suitable for OEM products. This is a motor pump for head integrated design of the pump for head to maximize the smaller size, reasonable structure, the most suitable for OEM way, briquetting with flexible, adaptive for different sizes tubes. Peristaltic Pump for Head only, other accessories in the picture is not included! Specification: Material: ABS&Metal Dimensions: 5.7x5.7cm/2.24x2.24inch Color: Black Speed 1 to 50.0 rpm reversible for Protection Class: IP31 Resolution: 1rpm external control: 0.1rpm Power Consumption: less than 10W Rate : 0-160ML/min Working Environment: Temperature 0 to 40 degree,relative humidity less than 80 pecentage Suitable For Stepper Motor: 42 steppper motor Package Contents: 1*Mini Peristaltic Pump Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.