I needed a storing system for my painting utilities, paints, brushes etc. Preferably one I could move around. I was thinking to build one from scratch. Then I ran into this NaNophotoNics TROFAST. It looked great for what I had in mind. I bought a new one at NaNophotoNics. I wanted to build a door with shelves where I could store my brushes. So I found a used TROFAST which I could saw into pieces and rebuilt it as a door. Then I attached wheels under the TROFAST and the door itself.