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Amazon.com: BBLIFE Silk 2 Color in 1 PLA 3D Printer Filament, 1.75mm Dual Color Silk PLA Printing Material, 1KG 2.2LBS Silk PLA, Widely Support for 3D Printers, Bicolor 2 Colors Silk Purple
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Amazon.com: TRONXY PLA 3D Printer Filament 1.75mm Color Changing Filament with Temperature Blue to White Color Change PLA 1KG Spool Cardboard : Industrial & Scientific
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