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Amazon.com: HATCHBOX TPU 3D Printer Filament, Dimensional Accuracy +/- 0.03 mm, 1 kg Spool, 1.75 mm, Shore 95A, Black : Industrial & Scientific
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Amazon.com: TRONXY 3D Flexible Blue TPU Filament 1.75 mm 2.2 LBS (1KG) Material: TPU,Hardness 95A : Industrial & Scientific