Dropper bottles are small containers designed to hold liquids and feature a dropper for precise dispensing. They are commonly made of glass or plastic and are often used for essential oils, medicines, and other liquid products. The dropper allows users to control the amount of liquid dispensed, making it easier to measure doses accurately. These bottles typically come with a rubber bulb attached to a thin tube, which creates suction to draw liquid into the dropper. Dropper bottles are popular in the pharmaceutical and cosmetic industries, as well as for home use in various applications, such as crafting and cooking.