I used a piece of the dynamite tough 16 to burn out a wood racket. The "tough" nylon coating came off and I was left with just the zyex multifilaments. The zyex filaments looked to have a diameter of 1.00mm-1.10mm. I am not surprised this string would break quickly; The nylon coating easily wears off, then you are basically left with a very very thin gauge zyex multifilament string.
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