Micropipette tips are small, disposable plastic (usually polypropylene) cones that attach to a micropipette to accurately aspirate and dispense liquids, particularly in microliter ranges, in laboratory settings. They are available in various formats like sterile, non-sterile, filtered, and long or short lengths to suit different experimental needs, such as preventing contamination in molecular biology, and they form an airtight seal with the pipette for precise volume transfer.