A measuring pipette, or measuring pipet, is a slender instrument with graduation marks for transferring liquids. Sometimes called Mohr pipette or Mohr pipet, measuring pipettes are available in transparent glass or plastic so users can visually read the liquid level. While most measuring pipettes provide rough measurements, calibrated pipettes provide measurements within a specified accuracy. Glass pipettes have a higher accuracy than plastic pipettes, are chemically resistant, and can be sterilized for reuse, while plastic pipettes are economical, unbreakable, and disposable. While a Mohr pipette has multiple graduations for a range of measurements, a volumetric pipette measures only one amount of liquid. Features to consider when selecting a Mohr pipette include volume, measurement accuracy, chemical resistance, ability to sterilize, and durability requirements.