Borosilicate GlassBased on 100,000 experiment report,this material has Ultra-low thermal expansion,heat resistant and high temperature shock resistance,far better than tempered glass.So borosilicate glass is the best choice for 3d printer. Worked PerfectlyThis Printer Glass bed is amazingly flat.Smooth flat surface improves the quality of your 3D printing, for consistent results.Thick 3.8mm glass plate will not warp or bend under heat. Easy to CleanJust wash it off with water, clean with glass print bed cleaner, reapply a thin layer 3d printing solid glue and enjoy.No need extra clips because of its own material and thickness.It won't take up build area. High Quality Square printer glass are safe and easy to handle.All edges have a nice smooth round over and there are no chips or scratches.Fits for the Ender-3, Ender-3 Pro, Ender-3S, Ender-3X, Ender-3 V2, Ender-5 and CR-6 SE, CR-20, CR-20 ProDISWAY01. 100% Sovol Genuine Brand New - Original packaging, premium quali