Amazon.com: SUNLU 3D Pen Filament Refills, 10 Bright Rainbow Colors, Total 164 Feet (50 Meters), Each Color 16.4 Feet (5 Meters), PLA Filament 1.75mm for Most 3D Pens, Easy to Use, High
SUNLU PLA 3D Printer Filament 1.75mm, Dimensional Accuracy +/- 0.02 mm, 1kg/2.2LBS Spool , PLA 1.75 (Rainbow Color) - Walmart.com
Amazon.com: SUNLU 3D Printer Filament, Neatly Wound Rainbow Silk PLA+Filament, 1.75mm Silk PLA+ Smooth Muticolor for Most 3D Printer and 3D Pen, Dimensional Accuracy +/- 0.02 mm (2.2lbs), 1 KG Spool, Rainbow :
Sunlu Rainbow PLA Filament
SunLu PLA Filament | 1.75mm, Rainbow, 1kg
Amazon.com: SUNLU 3D Pen Filament Refills, 10 Bright Rainbow Colors, Total 164 Feet (50 Meters), Each Color 16.4 Feet (5 Meters), PLA Filament 1.75mm for Most 3D Pens, Easy to Use, High