Product review (1 stars): Poor Fit
According to the compatibility tool provided on the Amazon product page, this knob is supposed to fit my GE PGB918SEM1SS stainless steel convection gas range.  Well, yes, it sort of fits.  It fits on the very tip of the shaft.  It does indeed allow you to operate the lower oven.  However, the knob does not slide all the way on to the shaft.  It sticks out way too far, leaving a big gap between the knob and the oven.  It looks ridiculous.  I will be returning it.