Buy Magnetic Field Display Window (Clear) from Shaw Magnets - magnetic field windows that contain magnetic powder in a water based solution for showing magnetic field patterns.
- When a magnet is present the particles of iron inside become slightly magnetised, so they attract each other and cluster into the lines that show the magnetic field patterns
- Size 225 x 130 x 15mm
- Includes 2x plastic cased magnets, 2x ferrite magnets and an information/instruction booklet
- Transparent background for use with an overhead projector