A Reed Diffuser consists of a vessel containing fragrance oil into which reeds are inserted. Natural reeds contain tiny capillaries that run its length. They absorb the fragrance oil like tiny straws, moving it up the length of the reed to the top where it evaporates and disperses the fragrance into the air. The diffuser consists of three main components: A small jar, bottle or bowl, usually made of glass A set of wooden reeds or sticks, typically numbering around seven total pieces Essential oil or other liquid fragrance. The offered Reed Diffuser is a great way to add constant fragrance to your home. The diffuser reeds soak up the fragrance oil and disperse the scent into the air.