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Designed specifically for Czech Nymphing, this is one of the hottest indicator butt sections out there. Super sensitive and really easy to see, you will be amazed at how well this butt section works. Connects to your fly line with a loop to loop connection or can be attached to the fly line the same way as a braided loop. When attaching in this manner, make sure to use a couple of nail knots to hold it in place securely.
 
You can also construct your leader with this Hi-Vis Indicator built in at any point in the upper part of the leader.  All you would need to do is run a 20" to 24" section of .017 or .019 diameter  tippet material off of your fly line and tie to on end of the indicator.  You will then pull the desired length of tippet material you want to fish (4,5 or 6X) and tie to the other end of the Indicator.  Make sure the overall length of this leader is about 3/4 lenght of the rod you are fishing. 
 
Setting up the indicator this way is perfect for smaller streams and creeks where you do not need to fish as deep