3D Printing Pen Filament, 3D Solutech 1.75MM PLA 12 Colors 3D Printing Pen Filament 32 Feet Per Color 384 Ft Total 32 Feet / 10 Meters Per Color Grant you Ultimate Printing Experience. 12 Top Selling Color Ignites your Ultimate Imagination. The Ultra Smooth Technology makes our Filament Extrude Beautifully and Smoothly that provides a Constant Printing Pace for Hand Printing Object. 3D Solutech Printing Pen Filament had been tested to all major 3D Printing Pens in the market with zero negative feedback. All our Materials are Purely Grown