This metal spool is made from laser-cut aluminum and designed to work on the Filabot Spooler. It has been created in order to work with high-temperature polymers such as PET, PEEK, Ultem, PC, and other materials that require drying temperatures that exceed the melt temperature of standard plastic spools. The metal spool will retain its shape during these high-temperature drying cycles and will last an extremely long time. It can, of course, be used with common low-temperature polymers as well. The spool holding capacity is 0.5kg of filament.