Overture TPU Filament, 1.75 mm, Flexible TPU Roll Soft 3D Printer Filament, 1 kg Spool, +/- 0.03 mm Dimensional Accuracy, 1 Pack (Black) : Amazon.de: Business, Industry & Science, (n.d.). https://www.amazon.de/-/en/Overture-Filament-Flexible-Dimensional-Accuracy/dp/B08X6P6YNC/ref...