mirror or glass holder
thingiverse
there are 4 files for all 4 corners. find them thing in http://shapedo.com/eyal/mirror_or_glass_holder
Download Model from thingiverse
With this file you will be able to print mirror or glass holder with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on mirror or glass holder.