newspaper for a couple of days before you start using the duster. There is some type of substance that they apply to the fibers on the duster from the factory. You need to bleed some of it off before you use it for the first time. If you don't , some of it will come off causing streaks on your paint finish. Even when you "season" it properly you will still get a few streaks the first few times you use it. The streaks come off very easily with a microfiber towel. These dusters seem to work better the more you use it. I only use it when the car is pretty clean, be careful if you use it on really dirty vehicles, it is possible to contaminate the duster. A friend of mine used it on his S2000 trying to remove some oily sap substance. As as result the duster was permanently contaminated. I had to throw it away and start over :(
