Dont use them unless you want your wallet rang out like a wet towel. Especially if your a young lady payin' cash for a car that you accidentally hit in a parking lot. I think the body shop manager and the truck owner split a spiff or something .......Just my .02. It was a small dent near the tailight,paint not even scratched and a broken tail light and hit my daughter for $1015.10...I.m not a body man but I am a Tech and have been for 29 years,but I think they stuck it to her! I got involved to late or I would have had more to say.Anyway...Just venting .....READ THE ESTIMATE all the way thru......