Great Toilet-Roll Holder Design

Cool I suppose, but I would much prefer a simpler solution. A solid steel rod that bends 90 degrees at the end, high enough to keep the roll on, but not high enough to prevent changing it. Like this:

  |                              Here is where
  |                              the rod is
  +------------------------------anchored.

Assuming the radius of a toilet paper tube is greater than 3 line heights.