Microcentrifuge tube

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Microcentrifuge tubes or microfuge tubes are small, cylindrical plastic containers with conical bottoms and an integral snap cap. They are used in biochemistry to store and centrifuge small amounts of liquid.

They come in many different sizes, generally ranging from 250 μL to 2.0 mL. The most common size is 1.5 mL. Because of their low cost, and the difficulty in cleaning the plastic surface, they are usually discarded after each use.

Eppendorf tube has become a genericized trademark for microfuge tubes or microcentrifuge tubes. Eppendorf is a major manufacturer of this item, but by no means the only one.