With the introduction of 3D Printers with large print volumes Polymaker have introduced 3kg spools for their engineering / industrial filaments. 

PolyMax PLA and PC-Max PolyCarbonate are both available on these 3kg spools. These materials are available in Black or White and are available as 1.75mm or 2.85mm diameter.

The packaging is lined with soft foam to ensure spools are shipped safely.