Please note - this guard is made for blades (metal and plastic) specifically produced (not purchased) after 2020 when they were redesigned. The production date can be found on the side of the box.
It looks almost identical to the small black guards produced prior to 2020 but they are slightly different and are not interchangeable. So it will not fit the older style blades. See second photo for reference.
Compatible with handle types 5802, 5804, 5805, 5806, 5808. Check your handle type number on the back of your trimmer.