A 1g sealed ampoule of Cesium metal.  Purity is 99.99%  The beautiful golden color of pure Cs metal is clearly visible.  Sorry no international shipping (International buyers, your order will be cancelled if it contains this item or any one of the following: Arsenic, Chlorine, Bromine, Gallium, Lithium, Mercury, Potassium, Rubidium, Sodium, Thallium, Thorium, Uranium, Amorphous Phosphorus, White Phosphorus or the Complete Element Set)