Filament Diameter: 1.75 mm, Filament Properties: None, Color: Red, Compatibility: MakerBot Replicator 5th-Generation, MakerBot Replicator Z18, MakerBot Replicator 2, Weight: 2 lb / 0.9 kg, Package Weight: 2.7 lb, Box Dimensions (LxWxH): 9.85 x 9.75 x 2.35", Warranty: 01 Year Limited Warranty The 1.75mm true red PLA Filament (Large Spool) from MakerBot is a bioplastic derived from corn. It's guaranteed not to have any heavy metals, phthalates, or BPA (Bisphenol A). The large spool provides 2 lbs (0.9kg) of PLA plastic filament.