Fly fishing is a sport which requires special pieces of equipment in order to be done. The fly reel is one of these equipment and plays an important role in fly fishing.
The fly reel is the one which holds the spool of line used in catching a fish. Also, it functions as the piece which controls the line.
If more line needs to be released or if the line slackens, it is the fly reel which adjusts the line to the desired length.
This piece of equipment can be made out of different materials. However, in saltwater fly fishing, aluminum is the material of choice because it is rust-proof. Saltwater is a highly-corrosive element, thus the need for a component made of aluminum.
Usually, fly reels are manually-operated. However, mechanical ones are favored by those who intend to go fly fishing in more demanding situations like those which involve long and arduous runs.
A typical fly reel has the retrieve on only one side. However, modern-day reels have interchangeable retrieves, meaning that the user can choose where to place a retrieve depending on which hand is stronger or on the type of fishing that he/she intends to do.
For example, right handed big game fishers prefer to have the retrieve to their right. Interchangeable retrieves are good for those who want to have a versatile reel. Also, it can save money compared to buying a specific retrieve for a specific need.