[build plate] Double-sided PEO+PEI spring steel plate .One side is upgraded PEO film .PEO looks like countless diamonds on the ,which make your eyes light up.The other side is texture PEI.It is like fine sand on a golden beach, very 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 leave a 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 return to flatness. Made of high quality spring steel plate. Flexible, removable, high strength and heat resistance, dual-side design, thicker and more . Easy to use, put the printing plate onto the lab printer hot bed, then the print bed levelling automatically go on while machine powered on. [Excellent adhesion for first printing layer] The model can be firmly attached to the of the print bed.Easily print even for a