With the enclosed manual, the great film immediately made perfectly and without air bubbles attach. The film for the upper screen was difficult to install, which is rather on the position of the display (slightly recessed) and ultimately only the third attempt succeeded - that are so each 3 copies at ... Did it actually in the vapor geschwängerten Bathroom with surgical gloves attached! The result is completely convincing. The films are hard to identify and provide absolutely unclouded perspective. Now, if true durability, this is a very inexpensive perfect screen protector.