... ) softer than PLA;(5) diameter of 3.0/1.75mm, variations + /-0.1mm,roundness +/-0.05mm;(6) 1 kg /plastic spool packaging, can be automatic ... dragging rate , make filament diameter range at 1.6-1.8mm/2.8-3.0mm, roundness +/-0.05mm, each spool net weight 1kg ... dark etcABS grade imported from Taiwan Chimei properties: ABS PLA 1.75 3.0 3d printing plastic filament