Bambu Lab PLA Basic Gray Diameter: +/-, Smooth Surface Finish, Biodegradable (with Spool) | +/- Tolerance, Smooth Surface Finish, Biodegradable, With Spool

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.