Electromagnet Kit

Build a doorbell, telegraph system and even a catapult all using a true electromagnet.

Kit includes:
- disc,
- latch and neodymium magnets,
- compass,
- straws, wires, sand paper, switch plates, wood screws, nails,
- light bulbs,
- battery holders,
- iron filings,
- pre-drilled wood blocks,
- light emitting diode (LED)
- experiment and project book.