the coil on which the flexible material is wound-film, magnetic tape, rope, wire, tape (although for the latter more precisely the term roll), etc.
The most famous domestic use of the word "bobbin" is associated with bobbin (reel) tape recorders and narrow-film projectors. The standard term applied to recorders — "coil"[1][2], to distribute compact cassettes coil also known as cassettes
It is also used as a designation of a properly (sequentially) wound, rigid rope, cable, wire — with or without a core.
