The Captive Back Lead MK2 from FOX are the only back leads on the market with a string. Because of this you will never lose these top leads. After casting in/out of your main line, clip these top leads for your rod tip onto the line, after which you finally attach it from the string to your rod pod / rod support. When striking, the top lead will then come off easily, after which you can bring it in by the string and then reuse it again. With the special shape of the lead and a clever clip system, Fox ensures that the top lead comes off very easily in all cases.