I received these wheel simulators in a very timely manner within a week of the order. The front simulators would not tighten on the front wheels without distorting the inner cap with the two provided lug extension studs. I called the customer service number and was questioned regarding wheel weights. I had one 1/2 ounce weight on my right front and a 1-1/2 ounce weight on my left front. I was told these most likely were interfering with the fit?? In addition to this, I dropped one of the rear wheel simulators and three of the pressed in lug nut caps fell out! After this I processed a return for them. They simply didn't fit my front wheels and I can't recommend them due to my own experience.