Features: Small size, light weight. Built into the front work panel or mounted on a trolley. Tubes can be easily replaced in flexible operations. Suitable for OEM products. It is integrated pump head design pump for motor to maximize smaller size, reasonable structure, most suitable for OEM way, briquetting with flexible, adaptable for different size pipes. Peristaltic pump only, other accessories shown in the picture are not included! Specification: Material: ABS & Metal Dimensions: 5.7x5.7cm/2.24x2.24inch Color: Black Speed Range: 1 to 50.0rpm Reversible Protection Class: IP31 Speed Resolution: 1rpm External Control: 0.1rpm Power Consumption: Less than 10W Flow Rate Range: 0-160ml/min Working Environment: 0 to 40 Degree Temperature, Less than 80 Degree Relative Humidity 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 don't 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 Included: 1 x Peristaltic Pump (Without Retail Package)