Esun Pla-lw 3d Printer Filament 1.75mm 1kg 2.2lbs 3d Printing Filament Light Weight Foam Material For 3d Printer Aircraft - 3d Printing Materials - AliExpress
PolyLight 1.0 - LW PLA – 3DLabPrint
Amazon.com: PLA-LW Filament 1.75mm, 3D Printing Filament, Lightweight, Low-Density PLA, Special for Airplane Model, 1kg Spool : Industrial & Scientific
Esun Pla-lw Pla 3d Printer Filament 1.75mm Lightweight Foam Material Strong Paint Adhesion 1kg 2.2lbs For 3d Printer Aircraft - 3d Printing Materials - AliExpress