Corning 4489 Serological Pipette 25 ml Stripette Total of 240 Pipettes

The Corning (Costar) 4489 Stripette is a premium 25 mL serological pipette widely favored for its "banana-peel" paper/plastic packaging and high-clarity optical features. Unlike standard pipettes, the Stripette line includes a unique anti-drip tip designed to minimize the accidental retention of expensive reagents or cells, ensuring that the full intended volume is delivered every time.

A signature feature of the Stripette design is the Color-Coded Magnifying Stripe. This red longitudinal stripe runs the length of the pipette and acts as a lens, magnifying the meniscus and making the graduations significantly easier to read. This helps reduce eye strain and improves accuracy, particularly when working with clear liquids.

This specific catalog number (4489) denotes that the pipettes are individually wrapped in paper/plastic. This "Advantage" style packaging allows for easy "pop-through" or peel-apart opening, which is often preferred over static-prone all-plastic wrappers when wearing latex or nitrile gloves. The pipettes feature bidirectional graduations (ascending and descending) and generous negative graduations (allowing for ~10 mL of extra capacity), giving you a total working volume of close to 35 mL.