No impairment of display visibility and touchscreen functionality. You will hardly notice any difference compared to an Apple iPhone 6, 6S, or 7 without a screen protector. Scratch-resistant due to the special hard-coated surface! Highly resistant to scratches and abrasion with a 4H pencil hardness. Intentionally smaller than the glass of the Apple iPhone 6, 6S, or 7, as it is curved, bubble-free, and can be removed without residue at any time (no adhesive). Extremely easy to apply! No bubble formation possible on a dust-free display! When applying the film, the air is displaced, and it adheres to the display as if by itself. Can be removed without residue at any time! Made in Germany - construction, cutting, and finishing at fair wages in Germany.