Magnetic model, cubical, eco

For demonstrating the magnetic field lines and the sense of direction around permanent or electromagnets, also for modelling a cubic crystal lattice of ferromagnetic materials, for demonstrating the Weiss districts or domains, Barkhausen jumps, saturation, hysteresis loop, Curie temperature etc.;
117 tip-mounted, arrow-shaped magnetic needles mounted between 2 acrylic glass plates in a cubic arrangement, 4 plastic feet prevent slipping on or scratching smooth surfaces, suitable for overhead projection
Length of the magnetic needles: 10 mm
Dimensions: 150 x 150 x 23 mm
Dimensions: approx. 257 g