TheFlySmith 10D GSP is the thinnest thread ever created for fly tying. It is super strong, lays flat, can be split for dubbing loops, and it takes color with sharpie. What more could you ask for?
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Great stuff all from shop great quality - will be buying more , delivery was immediate - mint was cute
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Barry · September 18, 2026
Super thin takes color easily. I like it will by more
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NEAL · 5 days ago
You’ll have to buy it so see how thin and strong this thread is for yourself! Amazing
