These things are awesome. I bought a new set if 33" MTR's and had the tire store balance them, each wheel had 6 to 8 inches of stick on weights. I removed the weights, broke the tire down and poured these magical beads in.
I've drove the Jeep up to 70+ mph and the tires are perfectly balanced.
Don't expect me to explain how they work, cuz I have no clue. The only thing I know is they work and will never be scraped off on a rock.
If you don't win this set, you had better buy a set if you drive on the road. I've bought a second set for my son in law and his used, chopped up 31's run down the road like a new set.
Fore 'IN to win another set' Wheeler