This is a wire brush holder for the Ikea Skadis peg board. It has a spot for the nylon, copper and steel brushes that come in most sets. I have included both a labeled and non-labeled version. It utilises the Ikea Skadis Universal Hook mounting system so no supports should be required.
The opening is 7.5mm wide (may vary based on your printer's tolerances), please consider this when determining if your brushes will fit.