I found these 6.5" square wooden frame boxes and thought they'd work well for my smallest painting/collage pieces. It sets the tiny (2-3") works apart and makes a sort of cabinet for them. The frames are 1 1/4" deep and were unfinished wood that I'm painting either black or off-white. I have a few different size frames; they inspire playing with mixed media or combining the little works on paper I've made and didn't have a 'plan' for. Who knew, there is always a plan, somewhere, eventually.