# LF Cheap Shutter **URL:** \ **Category:** Buy / Sell / Trade\ **Created:** [January 13, 2019, 6:07am UTC](https://forums.yoyoexpert.com/t/lf-cheap-shutter/297435 "2019-01-13T06:07:28Z")\ **Posts on this page:** 1\ **Showing post:** 20
**Author:** ![shatterFX](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/shatterfx/32/66476_2.png) [@shatterFX](https://forums.yoyoexpert.com/u/shatterFX)\ **Post date:** [January 13, 2019, 3:23pm UTC](https://forums.yoyoexpert.com/t/lf-cheap-shutter/297435/20 "2019-01-13T15:23:32Z")
Might still be able to get a free shutter over here: > [@Yo-yo science experiment challenge: how much does your string stretch in play?](https://forums.yoyoexpert.com/t/yo-yo-science-experiment-challenge-how-much-does-your-string-stretch-in-play/296274/): > > I have an idea for a yo-yo science experiment around strings and how much they stretch in play. Take out two brand new strings, from the same vendor in the same batch. Make sure they are both exactly the same length – you may need to cut to preferred size, but be sure to cut both of them! Put one string on your favorite yo-yo; put the other string away in a drawer. Play intensively with that yo-yo for 3 days. At the end of the 3 day period, measure the difference in length between the played a… --- _[View the full topic](https://forums.yoyoexpert.com/t/lf-cheap-shutter/297435)._