Baitcasting reels are different from spinning and spincast reels in several important ways.
Instead of the spool being parallel with the rod’s axis, they are mounted so that the spool sits perpendicularly to the rod. They also rest on top of the rod while in use, as spincast reels do.
But there is another important difference between baitcasting reels and those discussed previously. The spool of a baitcasting reel spins during casts. This means that you have to use a lure heavy enough to pull the line free.