Porcelain brick, crystallized (glass) surface with Cracked Veins. Size: Appr. 100x100x8mm (4"x4"x8mm). Characteristics: the porcelain tile has been fired in the kiln which has 1300 degree Celsius (2372 degree Fahrenheit) for 23 -25 hours, the surface was coated with a thin layer of glass and the glass coating is fired to become an integral part of the porcelain body, hence, due to the high temperature, there are delicate cracks formed inside the glass body which is a very special art form of glass and porcelain , every piece is hand cut so you get naturally different look for each piece but the consistent feel, extreme high density, impervious with extreme low water absorption rate (<0.1%), Applications: Pool floor and vertical wall surface, bathroom Wall Surface, Counter Surface, Kitchen backsplash, Surfaces both Exterior and Interior. You'll get Extra 2% discount entering this Sales Rep ID in the check out page: rk082407