a piece of equipment that consists of an arm and a rod holder base, all attached to a spool of wire line that is then lowered into the water
a short pole on a swivel mounted to the back of the boat with a heavy lead ball on the end of a line which can be raised or lowered by a hand crank
a spool of wire mounted on your boat
a weight with fins that you can pull your lure down to a certain depth and drag it behind you on the boat
A gunwale-mounted weighted line device used for deep-water trolling.
A downrigger is a device used in fishing by the trolling method which places a lure down th the desired depth. A downrigger consists of a fishing rod-like device suspending a cannonball (large weight) by a steel cable (generally stainless steel). A clip attaches a fishing line to the cannonball weight.