Spool Filament Holder

This is a spool filament holder with a bearing, it'll fit fro 28mm to 68mm whole on a filament spool. It has a 3/8 whole down the middle for a threaded rod. Its recommended but not needed a 608ZZ bearing you can get it from any skate board or from a fidget spinner. Parts:1 bering 608zz 1-3/8 Nut and 1-3/8 Lock washer. Lock washer goes next to bearing its a must and very important. Tighten Lock washer by hand and make sure spool spins freely with no drag.