[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 the rotation thumbwheel or the dispense button for liquid dispensing. Operation can be completed with one hand, simple and convenient. [Precise Pipetting]: With a precise roller design, the mini pipette pump ensures accurate dispensing every time. The cone tube connection provides excellent sealing, preventing liquid leakage. Compatible with both glass and plastic pipettes. Choose from multiple capacities: 2ml, 10ml, and 25ml, to meet your specific requirements. [Easy to Clean]: This compact and portable manual pipettor pump is designed for hassle-free sample collection. Its user-friendly design allows for quick disassembly, making cleaning and maintenance convenient. Ideal for daily laboratory sample extraction. [Durable and Environment-Friendly]: The laboratory pipette pump has a sleek appearance and is made from high-quality plastic, ensuring long-lasting performance. It features fine craftsmanship and strong durability, resistant to common acids and suitable for a variety of liquids. Ergonomic Design: The manual pipette pump is ergonomically designed to reduce muscle fatigue. It supports single-handed aspiration and dispensing. The silicone connector offers high resilience, perfect sealing, and leakage resistance, compatible with both glass and plastic pipettes. Color: As Shown in Picture Material: Plastic Package Contents: 3 x Pipette Pump Note: Light reflection and different displays may cause slight color variation between the item in the picture and the actual product. Measurement error allowance is +/- 1-3cm.