Welcome!

:-)
Albi
Very nice! I have shown my CU belay glasses to all my friends and to people at the climbing area and everybody likes them. I hope this helps you to sell more glasses!
I already have used them a lot and I love them. My neck loves them too!
I was wondering if you have thought about making the prisms a little taller to give the climber a bigger view in the vertical direction? I think they give a good view in width but could be better if they were capable of viewing more area above and below the climber.
Also, some people have commented that it might be nice if you could adjust the tilt of the prisms (like a hinge mechanism or something).
Anyway they are great the way they are but I thought you might be interested in what the people are saying - they all like them as they are but everything can always get better!
Thanks again for these glasses - they are amazing!
Cheers,
John