A fishing rod or a fishing pole is a tool used to catch fish, usually in conjunction with the sport of angling. (Sustenance and commercial fishing usually involves nets). A length of fishing line is attached to a long, flexible rod or pole: one end terminates in a hook for catching the fish. A 'fishing pole' is a simple pole or stick for suspending a line (normally fastened to the tip), lure, or bait. In contrast, 'fishing rod' refers to a more sophisticated casting tool fitted with line guides and a reel for line stowage. Fishing rods vary in action as well as length, and can be found in sizes between 24 inches and 16 feet (2.5 m). The longer the rod, the greater the mechanical advantage in casting.