Feature: 1. PEI Powder Coating: This 3D printer PEI sheet is coated with PEI powder coating, with frosted texture, wear resistant, not easy to scratch, and can adhere well to a variety of print materials, such as PLA, ABS, TPU, TETG, nylon, and withstands up to 200°C. 2. Double Sided Printing: This magnetic flexible heated bed is coated with double sided PEI, both sides can be printed, just put it on the heated bed, tear off the protective film and print directly, no glue required. 3. Strong Surface Adhesion: This 3D printer build plate has strong surface adhesion, no need for glue, it can realize cold typing, and the printing is not warped, and the bottom surface of the printed product is with frosted effect, exquisite and beautiful. 4. Sturdy And Durable: This magnetic flexible heated bed build plate is made of excellent spring steel material, which is sturdy and wear resistant, not easy to be damaged, and has a long service life. 5. Wide Application: This magnetic build surface heated bed has a wide range of applications and can be used for crafting, modeling, DIY and so on. Specification: Item Type: 3D Printer Build Plate Material: PEI, Spring Steel Size: Approx. 340 x 360mm / Approx. 13.39 x 14.17in Usage: 3D Printer PEI Coating Thickness: Approx. 0.25mm / 0.01in Spring Steel Thickness: Approx. 0.4mm / 0.02in Magnetic Rubber Sheet Thickness: Approx. 1.2mm / 0.05in Total Thickness: Approx. 2mm / 0.08in. Package List: 1 x 3D Printer Build Plate 1 x Soft Magnetic Base