Argon is the third elements of the Noble Gases with chemical symbol Ar and atomic number 18 (Noble gases family consists of He, Ne, Ar, Kr, Xe, Rn; Rn is not in sale cause is highly radioactive and very dangerous for health, the other are not radioactive). Argon is a colorless gas at normal pressure and temperature.
High purity Argon gas element 18 sample in mini ampoule inside glass vial, it is a low pressure sample which can be illuminated with a simple 2kW transformer, not sold with it. Very pure Argon gas sample. You can find this amazing ampoule only here. Pictures shows real image of the sample.