Pipette is an useful laboratory glassware used to transmit a measured volume of liquid in a lab experiment. Also known as pipet or chemical dropper, pipettes are commonly used in molecular biology, analytical chemistry as well as medical tests. From single piece glass pipette to more complex adjustable or electronic pipettes, the apparatus is available in several designs for various purposes with differing degree of accuracy and precision. Some of the commonly found pipettes designed to meet the different application requirements are Piston driven-air displacement pipette, positive displacement pipette, vacuum-assisted pipette, volumetric pipette, and graduated pipette.