SUNLU 3D Printer Filament Bundle, Individually Vacuum Packed, Quadruple Color Silk Filament*4, PLA Silk Filament*4, 250g Spool, 2kg Total

Well-known as much for their S1/S2 filament dryers as for the filament itself. The material catalog — PLA, PETG, ABS, TPU, silk — is broad and frequently discounted on Amazon. Solid all-around option.