Overlocker big spool holder

After buying a serger for my wife, i ordered also some thread spools. Some of them were bigger so they don't fit in the built-in holder. So i created this holder, using a piece of pine board, 4 M6x80mm screws as axles for the spool holders, 4 M6 nuts for the screws, 4 M6 lock nuts to adjust the height of the spools, 8 M6 washers (optional), 40 cm of 12mm aluminum pipe for the pole, 35cm of 6mm aluminum pipe for the arms and 4 small eye hooks. The spool holders used are from https://www.printables.com/en/model/26818-spool-holder. The holder can be stored dismantled, if not glued, to save space when not in use