Features: 100% brand new and high quality This 3D-printing build surface is an PEI square sheet. PEI (Polyetherimide) sheets provide a 3D printing build surface that requires no tape, slurry, or adhesive. ABS and PLA both stick extremely well to the surface, which eliminates the need for support rafts used for better adhesion. PEI is the perfect no prep build surface which is endlessly reusable for multiple prints; clean with isopropypl alcohol between prints (or with acetone on a COLD bed) The protective film guards against scratches during shipping and handling. Reuse for multiple prints, just wipe down with isopropyl alcohol between prints for best results; Sheet can be easily cut down to desired size by scoring with a utility knife. Package Includes: 1 x PEI Sheet 3D Printer Build Surface Specifications: Material:PEI Film Type:220x220/235x235/310x310 Size:Mixed Size note: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.