This is a mini tutorial about the use of Neodymium ("rare earth") magnets.  As you may have read here in different build threads, these little devils are invaluable when constructing a set of TK armor. BUT.. there are a few things to consider before purchasing and then using them...   For purposes of this tutorial, I will be referring to magnets that are 7/8 inches (23mm) in diameter and 1/8 inch (4mm) thick, (as seen below) with a strength of N40.     First, k