This is the spool-less version designed to refill empty spools cost-effectively and sustainably. Bambu PETG HF is a specially optimized PETG filament developed for high-speed printing. With a standard printing speed that is twice as high as that of conventional PETG filaments, PETG HF elevates your printing efficiency to a new level. Bambu PETG HF offers an excellent combination of speed and quality, making it an outstanding choice for professional and industrial applications. This filament is characterized by its exceptional print quality and minimizes common issues such as nozzle clogs and lump formation. It is ideal for applications that require high printing speed and reliability, such as functional prototypes, mechanical parts, and other demanding 3D printing projects.