A filament specifically created to use as a support material for hard-to-print objects. It is mainly used in conjunction with PLA, though it can be used with other materials.
 
Diameter: 1.75 mm, 2.85 mm
Weight 350 g
Density: 1.27
Meters per 750 g: 114.577 / 43.200
Weight per meter: 3.05 / 8.10 g
Meters per kg: 327.363 / 123.429