1) Material: PLA which is crisp, hard
2) Working temperature: 1.75mm at 210 degree
3) It is smokeless, smell like baked corn
4) Diameter tolerance: + / - 0.1mm
5) Roundness: + / - 0.02~0.05mm
6) Moisture absorption: average
7) Surface glossiness: good
8) Toughness: good, unbroken when bending
9) Weight: 1.3kg