The Screen Protector for the 3DS XL and New 3DS XL protects against dust, dirt, and scratches on both the top screen and the bottom touch screen. It also reduces smudges and fingerprints on the touch screen, which can appear after regular use. To apply, remove any dust from the top and bottom screen using the cleaning cloth. Peel off the masks and carefully place the screen protectors on their respective screens. Use the provided application card to push out any remaining air bubbles.