Barry,
I tried one of those a few years ago and took it back out. It worked very poorly. Only OK at just the correct view angle, if not the right angle they do not show up well at all. Maybe they have changed. The concept is good.
Glenn
I tried one of those a few years ago and took it back out. It worked very poorly. Only OK at just the correct view angle, if not the right angle they do not show up well at all. Maybe they have changed. The concept is good.
Glenn