O2 sensor callously sent in it's THIN shelf box. Not acceptable. Pkg was crushed both ends open, paper thin used bubble wrap failed to protect MY purchase any better than seller tried to. My order got ZERO respect from seller. I bought an electrical item that is NEVER supposed to be dropped. Totally disrespectful seller COMPLETELY FIRED! I am NOT HAPPY with this substandard treatment. Would have shared concerns before feedback, but seller sold me MUCH less than any CONSIDERATION on their part.