Review on High Quality Gray Control Knob Heater AC for Pontiac (Grand Am 1999-2005 & Grand Prix 1997-2003) - Compatible & Reliable Temperature Switch by Red Hound Auto by Edwin Cen

Very bad product. These knobs don't work at all due to fit and lack of attention during assembly. The spring insert in one of the handles was filled with glue and was completely unusable or even repairable. On the other handle, part of the injection molding was broken. One of the handles was broken. I bought two pens, neither of which worked. I ended up buying a used OEM pen on eBay. I think next time it will be better.