I used metal hooks for the necklaces and bracelets, and the earrings just hook into the mesh.
A bit of advice, there needs to be some space between the mesh and the backing. I hot glued the mesh to the inside of the frame, where the glass would rest against, and then attached the backing flat against the very back of the frame. This gave me about 1/4 inch of spacing. Just enough to hook the earrings in.
Super easy! I've got mine hanging on a wall in my bathroom.
Functional and cute!