High quality ABS filament material for smooth extruding and high impact resistance. 100% made in Holliston, MA, USA for the highest quality products, no bubbles or clogs. Vacuum packing with 100% quality acceptance test during production. The recommended extruding temp. 225C - 245C, and Platform temp. 90 - 110C, These temperatures setting depend on heat dissipating due to many parameters, such as the size of the project, the printer enclosure, cooling fan air flow direction and the accuracy of thermo-couple readings at the nozzle...etc