[Easy to Operate]: The long pipette pump features a dual liquid handling system. Insert the pipette into the cone tube nozzle, slide the rotating thumbwheel down to aspirate liquid effortlessly; then choose between the rotating thumbwheel or the dispense button for liquid dispensing. Operation can be completed with one hand, simple and convenient. [Precise Pipetting]: Designed with a precision roller mechanism, the mini pipette pump ensures accurate dispensing every time. The cone tube connection provides excellent sealing to prevent leakage. Compatible with both glass and plastic pipettes. Available in multiple capacities: 2ml, 10ml, and 25ml, to meet various laboratory needs. [Easy to Clean]: This compact and portable manual pipettor is designed for hassle-free sample collection. Its user-friendly design allows for quick disassembly, making cleaning and maintenance fast and convenient. Ideal for daily laboratory use. [Durable and Environmentally Friendly]: Constructed from high-quality plastic, this laboratory pipette pump offers long-lasting performance. Fine craftsmanship ensures durability and resistance to a variety of liquids. The silicone connector provides high elasticity, secure sealing, and leak resistance, compatible with both glass and plastic pipettes. [Ergonomic Design]: The manual pipette pump is ergonomically shaped to reduce hand fatigue. Designed for single-handed operation during aspiration and dispensing. Color: As Shown In Picture Material: Plastic Package Contents: 3 x Pipette Pump Note: Light reflection and differences in display screens may cause slight variations in color appearance. Measurement allowance is +/- 1-3 cm.