PolyDryer Box Spool Roller Mount

I own multiple PolyDryer Boxes. The spool roller that comes with them is not easy to place. And 2 of my boxes came deformed (bulged outward where the roller is supposed to be placed) so the spool does not even stay in place.This simple design goes at the end of the roller that comes with the PolyDryer Box and fixes any fitment issues holding the roller securely in place.If you are going to keep them on while drying, please use a heat resistant material that corresponds to different heat levels for the PolyDryer:Power Level 1: PLAPower Level 2: PETG/ABS/ASA/TPU/PVBPower Level 3: PC/PA/PVA