A microcentrifuge tube is a small, cylindrical container with conical bottom designed for use in centrifugation processes. Made from polypropylene, these tubes are capable of withstanding high-speed rotations and varying forces generated by a centrifuge. They come in various sizes, typically ranging from a few milliliters to several hundred milliliters, and often feature graduated markings for easy measurement. It is used to separate components of a liquid sample based on density, making them essential in research and clinical laboratories for tasks such as separating blood components, isolating cellular debris, or preparing samples for further analysis.