Description: PEI (polyetherimide) sheet provides 3D printed construction surface, adhesive tape has been applied, ABS and PLA adhere well to the surface. Instructions: Adhere the adhesive side to the surface of the hot bed aluminum substrate, and then remove the transparent protective film before use. Adhesive: 468P Thickness: 0.3MM Size: 220*220*0.3mm/8.67*8.67'' Package Includes: 1Pcs 3D Printer PEI Sheet