MakerBot Green Sea ABS Filament (1kg Spool) The best and most consistent ABS filament for your MakerBot Replicator 2X Experimental 3D Printer. Every filament color undergoes long duration testing to ensure that there are no deviances in print quality. Every millimeter of MakerBot filament has been subjected to stringent laser testing. Consistently round diameter ensures highest print quality and consistent flow through the extruder nozzle. Not compatible with Makerbot Replicator 2, Replicator (Fifth Generation), Replicator Mini, or Replicator Z18