These tubes are made using traditional neon tube bending techniques and filled with neon, argon, or xenon (the snaky ones) No two tubes are exactly alike.
Thanks for looking at my gallery. I have been working glass since 1996, I specialize in custom neon signs, neon art, & vinyl graphics. I also make and sell Geissler tubes, these are filled with argon, neon, and xenon gases. Please feel free to contact me with any questions or special requests.