brand new and high quality Features: 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 demo in the picture is not included! Specification: Material: ABS&Metal Dimensions: 5.7x5.7cm/2.24x2.24inch Color: Black Speed Range: 1 to 50.0 rpm reversible for Protection Class: IP31 Velocity Resolution: 1rpm external control: 0.1rpm Power Consumption: less than 10W Flow Rate Range : 0-160ML/min Working Environment: Temperature 0 to 40 degree,relative humidity less than 80 pecentage Suitable For Stepper Motor: 42 steppper motor Quantity: 1 Pc Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Peristaltic Pump (without retail package)