Product review (1 stars): When I checked the prices online I saw around $30 which I figured wasn't bad for a set of five knobs but then I ...
Recently one of my knobs started spinning on the shaft that turns on a burner. Took it off and found the stem was cracked. I checked the other four knobs and three of them are in various stages of getting ready to fail as evidence by cracks on both sides of the shaft. The one that isn't ready to fail is on a seldom used burner. When I checked the prices online I saw around $30 which I figured wasn't bad for a set of five knobs but then I realized that was for a single knob. If I buy four knobs that's $120 plus tax and shipping. Amazon's price is less but I'm still looking at around $80 to replace four cheap plastic knobs. I'm going to attempt to repair them with JB Weld.

The cooktop itself works great but LG is ripping people off on these replacement knobs so I'll think twice before buying another LG product. I once had a broken knob on a previous non LG cooktop. I think I paid $20 for a set of four.