6 sealed vacuum vessels/ampullasfilled with destilled Potassium.The oven of the Stern-Gerlachexperiment is filled with thisPotassium for the creation of an beamof atoms.Ampulla: 6 piecesLength: 50 mmDiameter: 10 mmDimensions H × B × T (mm):30 × 72 × 65Mass: 50 g