About this 3D model

I didn't like any of the existing expo marker holders and my dry erase board in my office isn't magnetic so I needed something that could clip onto the tray. Features: ✓ Prints flat with no support ✓ Uses minimal material ✓ Markers can be stored cap up or cap down ✓ Markers can snap in place ✓ Configurable for different size markers ✓ No glue required for assembly ✓ Source shared for others to remix