Spool Holder

This is the first thing I ever designed for 3D printing. I have not printed it out yet because I have yet to put my RepRap Prusa i3 together, the wife says I have to wait until after New Year’s. :(
It is supposed to be a spool holder to keep the spools inside a PA108 ammo can (Fat .50) from rattling around. The idea is that since ammo cans seal i can store my filament inside the can with some desiccant packs to keep them dry.
I plan on this being one of my first prints after I get my printer