The file 'Hanging Storage Under-Shelf Rail 3D Printer Model' is (stl) file type, size is 7.3KB.
Update: The new, improved hanging storage pieces can be found all together at https://www.thingiverse.com/thing:3097781
This is the shorter version of the hanging storage rail for mounting under surfaces. It's 4 inches (or 10 cm) long and requires 2 #7 recessed head screws for mounting. I use 1" long screws for going under shelves.
hanging_storage_under-shelf_rail_short.stl | 33.5KB |