The tray is open on the bottom, it fastens in the upper part of the bin and then the bottom of the pen rests on the bottom of the bin. It should work freestanding. I can check that out later this afternoon and let you know.
After opening another of the trays I realized it would work if the tray sits flat on the shelf. The Copic Ciaos and Sketch are wobbly, but seem ok, the Spectrum Noirs are fine. If I were going to set them on a table or desk I would try to find a basket or make a foam board frame.
"If a person who indulges in gluttony is a glutton, and a person who commits a felony is a felon, then God is an iron.”
― Spider Robinson
Last edited by ceramicat1; 06-01-2013 at 05:46 PM..