Please refer to the products in the links below.
https://www.vevor.com.au/linear-guide-rail-c_10531/vevor-linear-guide-rail-set-sbr20-1500mm-2-pcs-59-in-1500-mm-sbr20-guide-rails-and-4-pcs-sbr20uu-slide-blocks-linear-rails-and-bearings-kit-for-automated-machines-diy-project-cnc-router-machines-p_010340680230
By vevor