A pack of 12 in plastic case.
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Conical : made of brass, nickel plated,. 100 x 50 mm in size, mounted on insulated metal stand with tripod base.
Cellulose Strip For producing positive charges relative to polythene when rubbed by woollen rubber.. Overall Dimensions : 250 x 25 x 1.5 mm
Electroscope Pith Ball for Physics Lab A chrome plated brass pillar mounted on a wooden base with 2 pith balls spheres on unspun silk.
Rod Ebonite for Physics Lab With rounded ends; 300 x 12.5 mm.
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