I just got an AUXTUR String Trimmer that comes with 1 extra pre-wound string spool that are relatively small compared to other units and I fear that they will run out frequently. I thought it would be prudent to have a spare spool with the unit to avoid a possible extra trip to the tool shed while trimming and edging. I design two versions of a spool holder, one is printed on the base and the other stronger one is printed on its side along with a cover plate to make the mounting holes stronger. Support is not needed and adhesion is optional. If your string trimmer has a similar spool, it might work with them as well with some possible scaling.

To use, simply slide the spool down the shaft until it clicks to lock in place. Just squeeze the tabs together to remove the spool.