SUNLU High Speed PETG Filament 1.75mm Bundle, Less Stringing PETG 3D Printer Filament, 2kg in Total, 1kg per Spool, 2 Pack, Blac

? What is High Speed Filament  ? 500% more fluidity than PLA filament. ? 180% improved heat dissipation. ? 50% higher curing speed than normal PLA filament. Notes ? Please insert the filament into the side holes after use to avoid tangles. ? Feel free to message us if you have any questions about the filament. ? Please stored the 3D printer filament in a sealed bag or box after using it.