# What is the difference?

**URL:** <https://forums.yoyoexpert.com/t/what-is-the-difference/17862>\
**Category:** Yo-Yo Mods and Maintenance\
**Created:** [August 12, 2010, 10:07pm UTC](https://forums.yoyoexpert.com/t/what-is-the-difference/17862 "2010-08-12T22:07:41Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Preinfalk](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/preinfalk/32/551_2.png) [@Preinfalk](https://forums.yoyoexpert.com/u/Preinfalk)\
**Post date:** [August 12, 2010, 10:07pm UTC](https://forums.yoyoexpert.com/t/what-is-the-difference/17862/1 "2010-08-12T22:07:41Z")

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This might soung stupid, but what is the difference between “slick” 50/50 string, and 100% poly strings. To me, they play almost the same, so what’s the difference?

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**Author:** ![Yummy](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/yummy/32/14065_2.png) [@Yummy](https://forums.yoyoexpert.com/u/Yummy)\
**Post date:** [August 13, 2010, 2:06pm UTC](https://forums.yoyoexpert.com/t/what-is-the-difference/17862/2 "2010-08-13T14:06:06Z")

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Slick is half cotton half polyester. 100% polyester is just that.

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**Author:** ![TidusVsSora](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/tidusvssora/32/242_2.png) [@TidusVsSora](https://forums.yoyoexpert.com/u/TidusVsSora)\
**Post date:** [August 13, 2010, 2:30pm UTC](https://forums.yoyoexpert.com/t/what-is-the-difference/17862/3 "2010-08-13T14:30:29Z")

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> [@Yummy](#):
>
> Slick is half cotton half polyester. 100% polyester is just that.

slick wears out faster and is a little more responsive than 100 poly, but because its half cotton, its good to use on fixed axle yoyos. You shouldn’t use poly string on fixed axles because the friction makes heat which melts the the poly and breaks the string. i know from experience.