One notices immediately that these protectors is a liznsiertes product and not just on price. Super easy to use and the problem with dust is achieved with a supplied cloth. The bubbles are - when they occur - big and with a simple adhesive tape can lift the foil at the corner again and out underline the bladder. The application was easy above and below them, one must look at the short instructions beforehand because a film is specifically for the touch screen and the other for the top of the screen.
The Touching is as good as not impaired and especially for small NintendoDS owners are the ideal foil. Our children, it is certainly not at all noticed that we have drawn up a film on the screens.