diamonds on the surface,which make your eyes light up.The other side is texture PEI.It is like fine sand on a golden beach, very durable and resistant to high temperatures.It has been popular for a few years and remains a favorite among 3D printer enthusiasts.One build plate has two beautiful patterns. The bottom of the prints will leave a unique pattern. 【 Easy to Remove and use】The spring steel sheet can be bent to remove the model quickly, without the help of other tools. And the plate will return to flatness. Made of spring steel plate. Flexible, removable, high strength and heat resistance, dual-side design, thicker and more durable. Easy to use, put the printing plate onto the lab printer hot bed, then the print bed levelling will automatically go on while machine powered on. (The smooth surface has a factory protective film) 【Excellent adhesion for first printing layer】The model can be firmly attached to the surface of the print bed.Easily print even for a newbie.Please let the build plate cool down before remove the model to avoid damaging the coating. 【High Temperature Resistance and Compatible Filaments】The PEO print bed surface is resistant to high temperature 150°C and textured PEI coating bed is 300℃,After our extensive testing, we recommend PEO to print PLA / TPU /PETG，If you want to print other filaments, please adjust the parameters. And It is good to print PLA/PETG/ABS/TPU/Nylon/PC/PA/ASA/PVA on PEI surface. 【Compatible 3D Printers】The double-sided smooth PEO+ textured PEI print bed suitable for 3D printers with 310x315mm platform size, such as suitable for K1 max . Please confirm your 3D printer platform size before ordering. 310x315mm Textured Build Plate for Creatily K1 max/Ender 3 V3 Plus 3d Printer,Double Sided Textured PEI and Smooth PEO Flexible Spring Steel Sheet Plate 3D Printer Platform