Am still convinced of the great quality of the Crystal Clear films of mumbi. They protect the screen effectively from scratch and there are no problems with the display response. They are the best protectors on the market for me. In addition, they can be easily muster 100% bubble-free and have an extremely long liability. The delivery is always within the specified period. About people who complain that it is produced on the film one or two scratches in your pocket, I can only tired smile and say: Hi, this is a screen protector! Better on the film than on the display!