• When used in a 3D printing application, PEI is excellent because it can withstand the numerous heat cycles that a 3D print bed goes through from print to print.The PEI Printing Surface can compatible with PLA、PETG、PEEK、ABS and any other filaments.
• Size: PEI Sheet 310mmx310mm/12.2x12.2 inch
• Easy to install: Made of high quality stainless steel and strong magnetic base, stick the magnetic base to your PEI Sheet by peeling off the backing paper and sticking it to your bed, then place the steel plate onto the magnetic sheet. Keep the side with PEI facing up to print on. Please peel off the protective film on the surface before printing. 
• Flexible, removable, can stick to magnetics very well. High strength and heat resistance.When the temperature of the heating bed reaches about 60℃, No more tape, no more glue, no more shovel, and release your printing anxiety
• High quality PEI Sheet: The custom-designed textured PEI material let’s your prints easily adhere to the flexible surface. 
• When printing is complete, let the PEI Sheet cool down enough (to around 40C), then easily remove the prints. If the print is still stuck, just gently bend the steel plate and pop it off! After many times printings, lightly scour the surface of the PEI with some mild steel wool with 400 grit will have great adhesion or use alcohol to clear it and let it dry. 

The Flexible Build System solves your print bed issues. Filament uniformly sticks to the surface during printing and easily pops off when printing is done.