A filament dispenser includes a spool, hub, and an axle. The axle is laterally movable from a first position to a second position. The axle is independently rotatable with respect to the spool. In the extended position, the axle may be attached to a second spool, forming an assembly of operably-coupled filament dispensers. In the assembly, the connected spools are independently rotatable.

A fishing line winder is disclosed. The line winder is combined with a line reel, so that a fishing line is sequentially reeled and unreeled. The line winder is a machine for preventing reverse winding and tangling, where a base of the fishing line winder is provided with a shaft, and a driving member drives the shaft to rotate, while a spindle is provided with a line spool, an abutment wheel and an unidirectional bearing; a resistance against the rotation of the abutment wheel is formed by means of a brake pad, thus preventing reverse winding and tangling when the fishing line is reeled onto and unreeled from the line reel.

Tools and methods are discussed for tying a knot. A knot tying tool can include an elongated housing and an insert member. The housing can have first and second body portions having different outer cross-sections. A first chamber can extend within the housing with a slit that opens into the chamber. The insert member can also have a slit opening into a second chamber. The insert member can have an inner cylinder rotatable and movable within the first chamber. Rotation of the inner cylinder within the first chamber can move the knot tying tool between a locked and an unlocked position, the first and second slits being aligned in the unlocked position to allow a line to pass through the first and second slits into the second chamber.

A dual-bearing reel includes a reel body, a handle, a spool shaft, a spool, a clutch mechanism, and a level winding mechanism. The clutch mechanism switches between a clutch-on state and a clutch-off state. The level winding mechanism has a line guide unit, a moving part, and a switching mechanism. The line guide unit moves along an axial direction of the spool shaft. The moving part moves along the axial direction of the spool shaft. The switching mechanism switches between a coupled state in which the line guide unit and the moving part are coupled, and a decoupled state in which the line guide unit and the moving part are decoupled, in accordance with the switching between the on state and the off state.