All in one holder designed for standard 3d printer spatula and these cheap brass brushes often sold in kits of 3, you can store all of them convinientely push-fit in their spots. I printed mine with abs at low infill and super glued it to the side of my 3d printer enclosure for easy access, however the holes in the back of the holder allow for also using zip-ties, screws and the corrugated backing sticks well to double sided tape.