I believe the previous...
, September 21, 2009
This review is from Pentel Handy-lineS Memorization Aid Highlighter Pen - Red Ink
I believe the previous reviewer used this with a red transparency sheet, and
that is why it didn't work. I used this with the green transparency sheet and it
worked perfectly. (It's not the highlighter that makes it work, it's the
combination of colors!! Red highlighter and green transparency OR green
highlighter and red transparency.)