【Good Quality】: We prioritize 100% imported PEI raw film renowned for greater thickness and enhanced adhesiveness, making it ideal for PLA, PETG, PEEK, ABS, and more. Despite a higher cost than PET/PEO, PEI's exceptional performance—especially in high temperatures—positions it as a superior investment. Additionally, our inclusion of a thick stainless steel plate, explicitly rejecting inferior materials, guarantees resilience and flatness during transportation, extending its life. 【Exceptional Initial Adhesion】: Rigorous testing substantiates our claim that models firmly adhere to the print bed surface. Even novices can effortlessly achieve impeccable prints. Our double-sided PEI spring steel build plate, featuring both a smooth film for a flawless finish and a textured spray for a matte effect, stands out for its cost-effectiveness compared to designs utilizing similar materials. 【Ease of Disassembly and Utilization】: Dispensing with the need for adhesives or specialized textured papers, the spring steel plate merely requires thorough cleaning before placement on the printer's heated bed. Once adequately heated, printing commences effortlessly. Post-printing, a simple bend facilitates the easy removal of the model without necessitating additional tools. (Please ensure removal of the factory protective film from the smooth surface before usage). 【Considerations】: Sized at Round 330mm in Dia for Flsun S1 and similar-sized 3D printers. Be cautious about nozzle-to-PEI distance to avoid scratches. Any damage or contamination on the PEI surface affects longevity and print quality. Despite our confidence, recognize this product's consumable nature. Longevity depends on usage frequency and handling. Thanks for your loyalty; consume judiciously for sustained support. 【Notice】: Some specialty filaments like PLA SILK+ require very low bed temperatures (as low as 0-30°C) for safe removal. Using a higher temperature can cause strong adhesion and may damage the smooth PEI sheet. For optimal performance and to avoid such issues, always adhere to the material supplier's specific temperature guidelines.There are 1 piece Smooth/Textured build plate inside. Upgraded Round 330mm in Dia for Flsun S1 Build Plate 100% Imported Thicker PEI Sheet Smooth & Textured Flexible Spring Steel Bed Heated Platform for Flsun S1 3D Printer.