Manual pipettes are laboratory tools used to transfer precise volumes of liquids. They consist of a slender tube with a plunger mechanism that allows users to draw liquid into the pipette and dispense it accurately. Manual pipettes are commonly used in various fields, including biology, chemistry, and medicine, for tasks such as sample preparation and reagent mixing. These pipettes come in different sizes and types, including micropipettes for small volumes and serological pipettes for larger volumes. Users can adjust the volume settings to suit their specific needs, ensuring accuracy and consistency in experiments and analyses.