Extendable Dry Box Spool Holder

Friction-less spool holder in a dryer box. Spool holder is extendable, such that it works with most 4.0L cereal box. Based off from the original extendable spool holder and remixed with RODAM Ender 3 spool holder to have use up to three 608 bearings so that rotations can be friction-less. Since the spool tend to slide when using the bearings, I have upgraded the cylinder to keep the spool from sliding around.