Hydrogen Isotope Element Sample Luminous Gas Tube - Periodic Table

Description

This listing is for a larger self luminous Hydrogen isotope gas sample in a sealed glass tube.  This will glow on its own for many years.  Please note that the camera makes these look much brighter than they actually are in the photo for some reason.  This would make a great addition to someones element collection or would also be great for marking things in the dark.
Please check my other listings for more interesting samples and elements including smaller self luminous tubes.  Looking for an element you don't see listed? Feel free to contact me through ebay because I can get almost anything.
I have Na metal, K metal and Li metal available as well. I also have samples like As metal, Tl metal, Hg metal, White P, Br, Rb and Cs. Please don't hesitate to contact me through ebay if interested and I can create a custom listing for you. Thanks for looking.
***Attn Ebay, this is not radioactive. Please do not
delist***