... softer than PLA;(5) diameter of 3.0/1.75mm, variations + /-0.1mm,roundness +/-0.05mm;(6) 1 kg /plastic spool ... degOdorlow smoke ,tastelesswhite smoke, concentrated flavor ,make headacheRoundness+/-0.05mm+/-0.03~0.08mmwater absorptionVery low, no bubbles occur when printing ... each spool net weight 1kg+/-0.05kgIV we put all filament spool in shelf, different kind in different shelf, all categories ...