Bullet-proof Glass

The Bullet-proof Glass, or Shielded Glass, is composed by a combination of two or more types of glass, a hard one and a soft one. The soft layer confers an elastic characteristic to the glass and the glass bends and does not shatter.
It is a transparent and very resistant glass, mainly against penetration when struck by the ammunition of a fire gun or other type of object with the same intention of break or penetration.