Pulley 010339(4) for concrete mixer metal grommet, внутр.? 15mm, внешн.? 162mm, ручейковый - AliExpress
Amazon.com: FLASHFORGE 3D Printer Filament 1.75mm 1kg (2.2lbs) Spool, Dimensional Accuracy +/- 0.02mm, 3D Printing Filament Easy to Use and Fits for Most FDM 3D Printers (PLA-CF Black) : Industrial & Scientific