We don't sell these! Actually don't remember where we bought these from, but you can get them from so many places (we probably bought them off of eBay)
EBAY - here or similar
What is different? We have cut the inner of these down 80mm because we didn't like the length of them.
Our Review: These are really cool. We didn't get them for the purpose they are made for, just for the look as the standard mirrors looked tiny after all of the other modifications went on.
They are super user friendly and adjustable although they do create a massive blind spot being the length we have done them at.