The leader with a size 8 ring swivel on the end is best used with our inline leads, lead clips, running rigs and method feeders. Once wet all these types of lead system will easily slip over the tungsten collars and the welded loop at the end of the leader. When the leaders are dry, products such as inline leads and method feeders will stick to the tungsten sections and you will think they are unsafe. However, when wet they slip over them with ease and lets face it when underwater they'll always be moist. All the leaders have two lengths of tungsten melted onto them one third and two thirds of the way down the length to ensure the whole leader sinks to the lake bed on a slack line. Compare them to anything else on the market and it is blatantly obvious a great deal of thought has gone into them. We have made them in 1m lengths, which is longer than the original versions. There is no anti-tangle system in the world that is harder to see than the line on your reel so we feel that you should use the shortest anti-tangle system possible. If you don't believe us check out Part 2 of the Underwater films, our divers film the rigs out in the lake and even a small bobbin could actually lift long lengths of leadcore off the bottom! So my tip is, feel the lead hit the bottom, slacken the whole lot off and use the lightest bobbin you can to keep that line as close to the lake bed as possible.