X-Axis Linear Guide Rail Kit 3.0 for Ender 3 S1/S1 Pro. Notice: This kit was specifically designed and developed for Creality Ender 3 S1/S1 pro 3D printers. 2020 Profile Guide Rail: Specially customized for the MGN12H linear rail, this guide profile provides better accuracy and convenient installation tailored for the Ender 3 S1/S1 Pro.
eBay