eSUN PLA-LW 3D Printer Filament 1.75mm 1KG 2.2LBS 3D Printing Filament Light Weight foam Material for 3D Printer aircraft - AliExpress
ColorFabb LW-PLA Filament 2.85mm (750g)
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Amazon.com: SainSmart Light Weight Filament 1.75mm, LW-PLA Low-Density Active Foaming 3D Printer Filament for RC Planes Drone Parts and Cosplay, White PLA Filament, 1KG : Industrial & Scientific
Amazon.com: Polymaker LW PLA Filament 1.75mm Black, Pre-Foamed PLA 800g Lightweight 3D Filament - PolyLite 3D Printer LW-PLA for Printing RC Plane, 190-210 °C Printing Temp. | High Rigidity | Easy to
PolyLight 1.0 - SKY BLUE - LW PLA – 3DLabPrint
Amazon.com: SainSmart Light Weight Filament 1.75mm, LW-PLA Low-Density Active Foaming 3D Printer Filament for RC Planes Drone Parts and Cosplay, White PLA Filament, 1KG : Industrial & Scientific