No bubble installation : made with nippa japanses glue, the tempered glass make sure a clean and no bubble installation at your smart phone Comes with 2.5d round edges : tempered glass provides 2.5d round edges around all the edges that attach perfectly with the natural curve of your phone's display Protection with 9h hardness : the tempered glass has a surface hardness of 9h. In comparison, a diamond has a surface hardness of 10h. The surface hardness for how much pressure a tempered glass can take before it get damaged Area of coverage: Full Edge to Edge Screen Coverage › See more product details