What are the magnets starting in level 233?

Jaybo0723

In level 233 there are horseshoe looking magnets in the upper right and I can't find any info on what they are.

StuckInATree

Those dastardly things are Crown Magnets! They can capture up to 3 Crowns each and they will only release them onto the board when they are destroyed, which can only be done with Line Blasters!!!

http://alphabettysaga.wikia.com/wiki/Crown_magnet