Aluminosilicate glass, also known as Gorilla Glass, is a type of chemically strengthened glass that is used in a variety of applications, including mobile phone screens, tablet screens, and laptop screens. It is known for its high level of durability and resistance to scratches and cracks. It is made by ion exchange process in which the surface of the glass is bombarded with ions of a specific element, such as potassium, which causes the surface of the glass to become harder and more resistant to damage.

Basically, This is a super strong glass.

The fully molded high-density silicone rubber design provides maximum adherence to surfaces, ensuring stability and reducing the risk of slips. Additionally, its coverage of the entire bottom surface, rather than just the corners, provides added support and eliminates any flex in the middle.