Kobra S1C ACE PRO Riser external spool holder

Base by AMS Riser Remix Spool Holder w/Bearings by maCyo42 For printing TPU you may need external spool holder for happy printing you need 2x 625z ball bearings 2x m5 any head screws between 15mm-20mm (i used ball head M5x15mm) （the holder can even work without the bearings and screws！！！！）