Probably typical, but it can only be mounted one way.  Happened to be just the opposite of the one it replaced.  Had to locate it in a different space, that isn't as 'out of sight'.  Moen's design issue - no fault of Wayfair's.  The holder it replaced COULD be switched for left or right roll replacement.  Also the backside of the spindle is open/unfinished/hollow, and could be 'exposed' to the world, even if it could otherwise be turned around.  It's only a TP holder, I guess.