|For introducing the concept of equilibrium leading to an appreciation of the
principle of beam balance.
Consisting of a polished box wood scale 1 mtr. long divided in cm and millimeters on one edge,
and inches and tenths on the other. Drilled every 2 cm without riders.
Riders only for above lever, set of three : one
acts as a fulcrum and the other two as weight hangers. Complete with hanger hooks.