Size 8x8 inch, 1,5 inch thick birch board - gallery profile that does not require framing, but can be framed if you wish to do so.
Rady to hang with a wire at the back. Sides are left natural wood.
Hang it on your wall. Enjoy. No care necessary.
Ok, if it gets dusty you can wipe it down (damp cloth or duster) every now and then. Usually just the top ledge.