Color:Gray MakerBot ABS Filament is the best, most consistent ABS filament for MakerBot Replicator 2X Experimental 3D Printers. Each filament color is comprehensively quality tested at both 100 micron and 200 micron layer resolutions on the MakerBot Replicator 2X to verify it will perform every feature that MakerBot MakerWare software offers and reliably slice and print every type of 3D model. 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. MakerBot ABS Filament adheres well to kapton tape on heated build plate. MakerBot ABS Filament requires a heated build platform. Also, ensure your build plate is level, clean and oil-free. Use MakerBot ABS Filament in a well-ventilated area. Glass Temp: 105 C (221 F) Melting Temp: Amorphous, no true melting point Nozzle Temp: 230 C (446 F) Spool Diameter: 8 in Spool Width: 3 in Spool Hub Hole: 2 in Diameter: 1.75 mm Shipping Weight: 1.36 kg (3.0 lbs) Net Weight: 1 kg (2.2 lbs).