So you still have the unpleasing appearance of lumpy mirrors hanging off the sides of your bike, but without even the ability to see behind you? Kinda seems like a poor trade to me, but to each his own.
I dont think your picturing it correctly. You remove the miror, remove the miror bracket and bolt this on the bike to cover the hole where the bracket used to bolt on. They are only a few mils thick and look very clean.