A spool device includes a spool shaft and a spool. The spool shaft is rotatably mounted to the reel body. The spool is mounted to the spool shaft. The spool device has a notch part and a protruding portion. The notch part is disposed on one of the spool and the spool shaft. The notch part is formed in an axial direction of the spool shaft. The protruding portion is disposed on the other of the spool or the spool shaft. The protruding portion is configured to engage the notch part.
