http://www.p21s.com/products/bis_dt.html

Just wanna DOUBLE check if it is safe to use this product to dry the cars? I heard once that it would probably cause some light scratch on the surface. To be honest, I don't wanna go back to use those 100% cotton towels to dry the car after I tried p21s drying towel - only takes a few minutes to dry the entire car, really easy and saves me a lot of time.

any ideas?