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/2.24x2.24inchColor: BlackSpeed Range: 1 to 50.0rpm ReversibleProtection Class: IP31Speed Resolution: 1rpm External Control: 0.1rpm Power Consumption: Less than 10M Flow Rate Range: 0-160ml/min Working Environment: 0 to 40 Degree Temperature, Relative Humidity Below 80 Degree Suitable for Stepper Motor: 42 Stepper Motor Quantity: 1 PcNote: 1. Please allow 0-1cm error due to manual measurement. Pls make sure you do not mind before bidding.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Included: 1 x Peristaltic Pump (Without Retail Package)