I just saw this and thought WOW! (if it works that well). I did check out the pricing and

but then again, how much would your deductible/co-pay be for the treatment of carpal tunnel syndrome or chronic shoulder tendonitis?
Now what would be interesting to see is a comparison of clay vs. mitt to see how many cars can be done, how effective (thinking time management etc....). If you can only do 4 heavily contaminated cars with one 200 gram clay bar and can do 10 with the mitt, and save time and potential chronic repetitive injuries then it is worth it.
Quick question: We know when the clay needs to be thrown. How would we know when it is time to throw the mitt?