Product review (5 stars): Great quality and perfect fit.
Great quality knob.  It's a shame LG couldn't have placed this on the original stove.  The knob itself appears to be stainless steel with a stainless steel ring around the white plastic piece that the original knobs are made with.  The white plastic piece is still inside the knob, but this knob is replaced with stainless steel surrounding the plastic inside.  So much better! Hopefully these will last.  We placed it on an LRG3095ST stove.  Perfect fit.  Nice and tight.

We bought the same knob to replace the "super boil" knob that melted and also to replace the knob for the center griddle.  Fit perfectly.  The only thing is the knobs don't have the "super boil" markings on them, but all you have to do is look at the flame level to know where to set it.  Saved $15 by buying this knob, versus the one painted with "super boil."  Works the same.