A reel includes: a hub in which plural through holes are formed at a connecting portion that interconnects a cylinder portion and an axial center portion; a first flange that is disposed on one end portion of the hub and equipped with a first inner peripheral portion, which contacts a first reference surface formed on the connecting portion and ensures that a first flange surface does not touch the cylinder portion, and first insertion portions, which are inserted into the through holes; and a second flange that is disposed on the other end portion of the hub and equipped with a second inner peripheral portion, which contacts a second reference surface formed on the connecting portion and ensures that a second flange surface does not touch the cylinder portion, and second insertion portions, which are inserted into the through holes and are joined together with the first insertion portions.