The file 'Honeycomb Fridge Mount Organizer 3D Printer Model' is (stl) file type, size is 102.0KB.
I just added a 3mm box to the back...cut out 26mm holes x 2.3mm for the magnets in tinkercad
http://www.ebay.com/itm/301430690192
I have found doubling up the above magnets make them CRAZY strong
Corrected the damaged cell
Pen_Box_Wall_26mm_holes.stl | 251.1KB |