Pascal's Vases

For demonstrating the hydrostatic paradox, by means of a membrane deforming under pressure, downward hydrostatic pressure in the vessel is transferred to a 200 mm lever and displayed on a large scale, 4 glass vessels of various shapes, height: 220 mm each, internal Diameter at mouth = 23 mm, adjustable pointer for marking height to which filled, Dimensions: 260x100x100(360) mm