Magnetize all 4 versions of your Impulsor with this kit.
4x 6.0x2.0mm Disc Magnets
1x 3.0x2.0mm Disc Magnet
2x 1/8" x 1/8" square plate
2x 5/8" x 1/8" steel plate
All magnets are the highest N52 Grade Triple Coated with NiCuNi.
Here's a great video from Spikey Bits to use the kit.