# What is the string that comes standard with a lot of YYF yoys?

**URL:** <https://forums.yoyoexpert.com/t/what-is-the-string-that-comes-standard-with-a-lot-of-yyf-yoys/70042>\
**Category:** General Yo-Yo\
**Created:** [October 10, 2014, 10:56pm UTC](https://forums.yoyoexpert.com/t/what-is-the-string-that-comes-standard-with-a-lot-of-yyf-yoys/70042 "2014-10-10T22:56:08Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![SwissArmyTenor](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/swissarmytenor/32/7943_2.png) [@SwissArmyTenor](https://forums.yoyoexpert.com/u/SwissArmyTenor)\
**Post date:** [October 10, 2014, 10:56pm UTC](https://forums.yoyoexpert.com/t/what-is-the-string-that-comes-standard-with-a-lot-of-yyf-yoys/70042/1 "2014-10-10T22:56:08Z")

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Came with The Grind Machine, for example. The bright green string. Is there a specific name? Is it cotton? Poly?

Thanks in advance ~

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**Author:** ![CaliBuddha](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/calibuddha/32/156_2.png) [@CaliBuddha](https://forums.yoyoexpert.com/u/CaliBuddha)\
**Post date:** [October 10, 2014, 10:56pm UTC](https://forums.yoyoexpert.com/t/what-is-the-string-that-comes-standard-with-a-lot-of-yyf-yoys/70042/2 "2014-10-10T22:56:54Z")

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It’s poly and probably YYF-brand string.

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**Author:** ![Zorro](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/zorro/32/206266_2.png) [@Zorro](https://forums.yoyoexpert.com/u/Zorro)\
**Post date:** [October 10, 2014, 10:57pm UTC](https://forums.yoyoexpert.com/t/what-is-the-string-that-comes-standard-with-a-lot-of-yyf-yoys/70042/3 "2014-10-10T22:57:23Z")

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I heard it was YYF String. I would imagine it is a 100% poly string. I don’t prefer it myself but if you like, try asking YYF.