Rods are used while Fishing to catch fish. There are eleven different types of rods currently available, each with a different level of power. The stronger rods will help catch the more challenging fish, like the Saltwater Crocodile, Black Tip Reef Shark and Alligator.
Some of the rods available can be crafted but require plans that can only be gathered by activating certain quests. The Neptune's Sceptrerod is the most powerful rod, and can only be purchased with Bank Notes from your Almanac, a Fishing Stall, or a Fishing Shop.
The stronger your fishing rod's power is, the easier it will be to catch difficult fish.