What are these gauges made of?

[rgnhd]

I'm looking at ideas for custom clusters I'm wanting to make for my car and I cam across this site.

I absolutely love how they have the fuel gauge illuminated and see through like that.

Anyone know what material that is and where I can get something like this made? Or where I can get the material to make them? And I am only taking about the lights and gauges on the sides no the entire cluster itself.

http://customclusterdevelopment.com/lens_portfolio/turbo_juice/

[Croustibat]

it is a led, with lexan "glass" . Nothing special

[rgnhd]

it is a led, with lexan "glass" . Nothing special

Thanks for the response I honestly didn't realize that was Lexan glass. Anyone know how the text was etched or printed on there?

[CompleteXen]

Dude, an extremely simple trip to google would help you find what the etching it.

Laser Etching/Engraving. Come on man.