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Dense flint glass, refractive index 1.620 to 1.623
Brass, with ring on top
Die casted, powder coated. These are excellent alternate of brass weights. These masses can be supplied in sets also.
Aluminium, diameter 50 mm, in metal frame, with two hooks.
The set includes five blocks of the same size and mass and five steel balls also of the same size and mass. Students will be surprised to observe that the blocks and balls when combined together, results in different mass in each case. The set illustrates the importance of mass distribution in determining the mass of an object.