Fine workmanship, plastic, durable and long service life. Large flow, stable and efficient performance, easy installation. The pumping speed is fast, it can pump 20-30 liters of water per minute (depending on the speed of the rig). Easy to use and store Install all drill chucks to use the electric drill pump, which is simple and convenient to use. Small and lightweight design, easy to carry and easy to store. The recommended speed is 1500-3500 rpm. Pump head and flow rate are related to speed. The higher the speed, the higher the head and flow. 1500 rpm, the pump head is about 1.5 meters, and the flow rate is about 15L/min. 3000 rpm, the pump head is about 3 meters, and the flow rate is about 30L/min. Due to the differences between different monitors, the pictures may not reflect the actual color of the product. Please allow 1-3mm error due to manual measurement. Thanks for your understanding. Material: Plastic Inner tube diameter: about 15mm Diameter of drive shaft: 8mm round shank Operating Temperature: Approx. 5-49 degrees Celsius (41-120 degrees Fahrenheit) Rotation direction: clockwise Shipping Quantity: 1 Piece Product color: black Product size: about 106*37*64mm