Bambu Lab PETG Basic Filament PLA Line Diameter Accuracy +/- with RFID No Hassle Settings Required 1 Piece 3D Printed Filament Tangle Reducer No Genuine Reusable Spool 1 kg White

Bambu spools carry an RFID chip that the AMS reads for automatic material settings — buy these if you want zero-fuss multi-color on a Bambu printer. Dimensional tolerance is held to ±0.02 mm; refill spools are available if you want to cut plastic waste.