No impairment of display visibility and touchscreen functionality. You will hardly notice any difference compared to a Garmin Venu (43mm) without a screen protector. Scratch-resistant due to the specially hard-coated surface! Highly resistant to scratches and abrasion! 4H pencil hardness. Deliberately smaller than the Garmin Venu (43mm) glass, as it is curved, bubble-free, and can be removed without residue at any time (no adhesive). Extremely easy to install! 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.