The drag adjusting device (16) is provided with a pin member (70) arranged on a plate-like member (80) of a reel unit (1) such that it can be attached to and detached and such that its position can be changed. The pin member (70) serves to remember a prescribed pivot position of a drag mechanism operating member (2). When an angler finds an optimum drag lever position, the angler installs the pin member (70) in a mounting recess (81) corresponding to the optimum drag lever position. In this way, the angler can easily set the drag mechanism operating member (2) to the optimum drag lever position without having to remember the drag lever position.