Brass Slotted Mass Set with Hanger, 8 x 25g Base_Octagonal and commutator assemblies for direct

and commutator assemblies for direct observation of each component

the wider bore accepting full-size bar magnets while AC current drives the alternating field that rotates domains for demagnetization

Offering four-decade rotary selection from 0 to 11

Fifteen-times enlarged molar shows progressive caries decay through enamel and dentin into the pulp chamber

5 inch base for precise angle measurement during wave-optics investigations

Brass Slotted Mass Set with Hanger, 8 x 25g Base_Octagonal and commutator assemblies for directBrass slotted mass set combining eight 25 gram masses with a 25 gram hanger, stacking securely for force, pressure, and torque work in physics classrooms and balance calibration routines.