How hard is the 9h hardness tempered film?

9H indicates that the hardness of the toughened film is Grade 9, and H is the highest hardness grade. In glass materials, H stands for hardness, and the higher the numerical value, the higher the hardness. The toughened film with 9H hardness has very high hardness, which can effectively protect the mobile phone screen from being scratched and damaged. This toughened film also has the functions of explosion-proof, scratch-proof and fall-proof, which can effectively protect the screen safety of mobile phones.