Cast Alnico 4 Bar Guitar Pickup Magnet Magnetized

Cast Alnico 4 Bar Guitar Pickup Magnet Magnetized, Alnico 4 Magnets FOR Humbucker Pickup Makers, Replacement Alnico Magnet Spacers for Humbucker or P90 Pickup, Narrow Alnico Bar smooth humbucker magnets, original PAF mags cast Alnico Magnet China Factory

Cast Alnico 4 Bar Guitar Pickup Magnet Magnetized Part No.  MP-GPBMA4 series, Fully magnetized Alnico 4 bar magnet. One end of the magnet is painted yellow to distinguish the magnet grade. (2.180” long x 0.500” wide x 0.125” thick)

Alnico Magnets for Pickups
Alnico magnets come in three main grades: 2, 3, and 5:
Alnico 2 traces back to the days of the 1950 Telecasters. This class seems to work well for middle-position pickups. It is known by its sweet, vintage tone, and there seem to be little disadvantages to using it.
Alnico 3 is the weakest of the three grades. It contains less cobalt, a core ingredient in the rest of the Alnico family. Because of the decrease in magnetic pull, it works wonders for neck pickups, where there is the most string vibration.
Alnico 5 is the strongest of the three alnico grades. The tone and response of the magnet is more powerful than its two cousins. This makes it perfect for bridge pickups, where there is the least vibration. If you want an aggressive, in-your-face kind of sound, Alnico 5 is your best bet.

Magnetic spacers are a novel little idea, and turn up sporadically on production pickups every so often. Essentially, they replace the inert maple or plastic spacers either side of a Humbuckers poles to alter the tone, usually by making a pickup more aggressive. Alnico 3 Humbucker Pickup Magnets
So what can you expect from these magnets?
Alnico II is a lower output magnet that is smooth and usually has just a bit of warmth.
Alnico V has more scooped mids and tighter in the low end. Provides some bite and sparkle.
Alnico VIII is generally between Ceramic and Alnico V, with quite a bit of magnetic pull, punchy with upper mids but a little more warmth than ceramic.
Ceramic is quite strong and gives a very bright tone. It retains articulation and clarity even with heavy distortion which makes it suited for heavy distorted styles.