This is a colorful plated rare earth neodymium iron boron hollow cylindrical magnet, outer diameter 9.5mm, hole 5.8mm, height 10mm, with a dazzling colorful appearance, very beautiful, can be customized with a variety of performance ratings, mainly used for magnetic pens on top of the, you can DIY it yourself.
Colored coated neodymium hollow cylindrical magnet for magnetic pen display
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