EscapeLauter › 3D Printer Parts › Prusa MK4 I3 MK3 MK52 Gold Double Sided Textured PEI Spring Steel Sheet P. 2019 New Upgrade for 3D Printer Print Bed, Compatible with Prusa MK4 MK3 MK3S+. Double-sided PEI powder-coated plate made of hardened flexible steel, does not deform.
eBay