# The installation size of the guide rail block does not match

**URL:** <https://forum.cloudray.com/t/the-installation-size-of-the-guide-rail-block-does-not-match/310>\
**Category:** Installation Materials\
**Created:** [April 21, 2021, 2:15am UTC](https://forum.cloudray.com/t/the-installation-size-of-the-guide-rail-block-does-not-match/310 "2021-04-21T02:15:17Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Technician](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.cloudray.com/technician/32/15_2.png) [@Technician](https://forum.cloudray.com/u/Technician)\
**Post date:** [April 21, 2021, 2:15am UTC](https://forum.cloudray.com/t/the-installation-size-of-the-guide-rail-block-does-not-match/310/1 "2021-04-21T02:15:17Z")

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1.Problem description:The guide rail slider is 15mmx19mm, the track is 12mm and the C series is 26mmx26mm, how to install?  
2.Analysis:Punch appears.