Potassium Metal Element 19 Sample K, Pure 1 gram 99,8% Pieces Under Mineral Oil in Labeled Glass Vial

Potassium Metal Element 19 Sample K, Pure 1 gram 99,8% Pieces Under Mineral Oil in Labeled Glass Vial

Sodium Metal Element 11 Sample, 99.8% Pure 1 Gram Under Mineral Oil Inside a Labeled Glass Vial…

Lithium Metal Element 3 Sample 99.9% Pure 1 gram Shiny Pieces Under Mineral Oil in Labeled Glass Vial