The screen protectors "Crystal Clear" from "mumbi" fit on my LG P880 Optimus 4X HD PERFECT! No restriction on the touch screen or malfunction of the brightness sensor! The screen protectors are very solid and are very durable! Cleaning I do it mixture of winter car Scheibenklar and wassser always with a home-brewed! (Empty spray bottle, a quarter car "winter" and the rest fill Scheibenklar with water!) Display films tolerate the super and fettFilm is now gone! magic bullet with my "I brush even at minus 15 degrees window, laughing ... Am absolutely satisfied. Contact Handynow also perfect!