flashforge silk pla filament 1.75mm metal rainbow, 3d printer filament 1kg (2.2lbs) spool, smooth and silky texture 3d printing filament, dimensional accuracy +/- 0.02mm is up for auction in Industrial & Scientific. The current bid is $6.00, 71% below the $20.79 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.