Droppers and pipettes are interwoven in their roles, although they differ slightly. Pipettes are typically made from plastic and can be anywhere from a few to several inches long. They’re commonly used in laboratories and in gardening to transport and dispense small, precise amounts of liquid-like chemicals and fertilizers. A dropper is typically much smaller (an inch to maybe three inches), generally made from glass, and is attached to a rubber and plastic cap. It’s meant to be part of a dropper bottle for tinctures, medications, eye drops, etc.