OVERTURE 4KG Bundle High Speed Refill PLA+ 3D Printer Filament, Upgraded Rapid Enhanced Toughness & Stability, 4 Pack 1kg (2.2lb) Refilament for Bambu Lab (Black+White+Space Gray+Light Gray)

Long-running brand manufactured in China and stocked in US warehouses for fast delivery. Dimensional accuracy is good, the paper spool on eco variants cuts down on plastic. Mid-range pricing, no drama.