Product review (5 stars): GE  selector knob
This replacement knob for my GE Dryer fit perfectly.  It looks a little different than the original.  The only thing I noticed was when I put the new knob on the line indicator didn't line up with the timer cycles, but that was ok, because a marked them and the knob fits and works, and that might have been my own doing when the old knob wasn't working right.  I would recommend this replacement knob, I couldn't be happier with it!