Monofilament line is predominantly used as mainline on your reel, but can also be used as leader material if the mainline you are using is braid, and you need a leader with shock-absorption qualities. This line will absorb any shocks that occur when a fish realises that it is hooked or is splashing about boatside. The low-stretch design will help reduce any slack in the line, so you can stay in constant contact with your bait or lure and strike to set the hook when you get a bait. It is easy to handle when tying knots, and the low memory reduces the chance of tangles when casting or retrieving line. The Penn Mariner Mono is noticeably abrasion-resistant, which you will appreciate when fishing over oyster racks, reefs and other snaggy areas. It has a high-visibility yellow colour so you can see where your line is, when drifting in the current. This also helps to spot any movement in your line when a fish cautiously picks up or nibbles at your bait or lure. It has a 6 pound rated strength, which is perfect when targeting species such as bream, flathead and whiting and other small to medium-sized fish.