$5.75
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Ultra GSP is the strongest thread on the planet! Boasting a steel-like strength for its weight, this thread really lets you put the pressure on! Our gel spun polyethylene is supple, ties flat for tying small trout flies with a minimum of bulk.
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We currently ship within the US, with more countries coming soon.
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🇺🇸 Ship from USA · On Agora since 2025
$5.75