With the laser beam, smallest structure changes can be inserted into the glass, which will then display the 3D laser effect.
In doing so, the surface of the material will remain untouched.
The engraving in the glass cant fade nor become yellow, and therefore is immune to outer influences.
When using the USB-stick, the LED-light is refracted on the 3D-laser engraving inside,
and this creates an impressive advertising impact.
