I received this as a gift, so I don't know much about the product. The sticker on the back says "Mercedes-Benz C-Class 10.25 inch Glass Film Protection Navigation." I won't be able to answer any questions, so I'd appreciate it if someone with product knowledge would purchase this. This is a 9H hardness CFOTPP tempered glass protective film, with excellent impact resistance and an instruction manual. - Brand: CFOTPP - Type: Tempered Glass Protective Film - Hardness: 9H - Included: Instruction manual, cleaning cloth - Warning: Contains precautions Thank you for looking.