Closet Spool Holder

Needed a way to store my spools in the closet with my 3D printer and checked out a few here on Thingiverse and they weren't quite to my liking. This particular holder works with Closet Maid (or other wire closet systems) and is made to hold a single spool at a time. It is a somewhat compact design, so larger spools will take some care to move off and on.