They are a square set yes. This is my second set I had, the other were sold to a local that put them on his 745T with no problem. Filled the fenders very nicely, they're literally a perfect fit. Would work just as well on a 240.
I am basically in need of a little cash in the short term which is why these are being bumped back up - If they don't sell this week or so when my bills come due, or if I find the money elsewhere, I will be keeping them.