A Glass Dropper is used to measure and dispense liquids. It is used to transfer small amounts of liquids, but is not graduated. The most obvious use for a medicine dropper is to dispense small amounts of medicine. Many medicine droppers have markings to help measure liquid, allowing the user to give an accurate dosage. It is made of glass, which means that they can be easily cleaned and reused with the simple removal of the rubber bulb. The Glass Dropper is very useful.