Usage Tips:[Easy to Operate]: The long pipette pump offers a dual liquid handling system. Insert the pipette into the cone tube nozzle, slide the rotating thumbwheel down to aspirate liquid effortlessly; then choose the rotation thumbwheel or the dispense button for liquid dispensing. The operation can be completed with one hand, simple and convenient. [Precise pipetting]: With precise operation roller design, the Mini pipette pump ensures accurate dispensing every time. The cone tube connection guarantees excellent sealing, preventing any liquid leakage. Glass and plastic pipettes are adaptable. Choose from multiple capacities; 2ml, 10ml, and 25ml, to meet your specific requirements. [Easy to clean]: This compact and portable manual pipettor pump is specifically designed for hassle-free sample collection. With its user-friendly design, the pipet pump allows for quick disassembly, making it incredibly convenient for cleaning and maintenance. Ideal for daily laboratory sample extraction. [Durable and Enviroment-friendly]: The laboratory pipette pump is amazing in appearance. Made from high-quality plastic, it is not only lightweight but also durable, ensuring long-lasting performance. And it is delicate in process, strong in workmanship, resistant to conventional acid and alkali, can be used for a variety of liquids. manual pipette pump is ergonomically designed to avoid muscle fatigue. It can be single-handed to aspirate and dispense. The silicone connector provides high toughness, perfect sealing and leakage resistance, capable of glass or plastic pipette. Colour:Photo Color Material:plastic Package Contents: 3 x pipette 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.