Product review (4 stars): A replacement for a bad design.
I purchased two of these to replace my 2011 Samsung Gas oven/stove combo.  The original cracked at the insert stem collar - a very critical area of the knob.  The dial outer-shell itself is an aluminum-like material that is an exactly the same match and looks as good as the original.  However, the stem collar is plastic - why!!??  A poor design by Samsung.  This replacement  appears to  be the same material - whether this will last, time will tell.