BuildTak 3D Printing Build Surface, 4.5" x 4.5" Square, Black (Pack of 3) Build sheet adheres to a print bed to help the filament stick during printing, while also enabling clean removal of the printed part afterward Compatible with ABS, PLA, HIPS, PET+, brick, wood, and flexible (TPE) filaments (sold separately) Durable construction allows for multiple uses with either the same or different filament material Single sheet design installs more quickly and with fewer bubbles than tape or films For use with fused-filament 3D printers (sold separately)