Neodymium Oil filter magnet
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3D3DOil filter magnet.
This is a strong magnet meant to be stuck to the oil filter in your car to trap small particles of metal as they flow by in the oil, thus protecting the engine from wear caused by such debris. Not a stupid idea, I have no idea if it actually works.
Source: eBay
Contributor: Theodore Gray
Acquired: 11 March, 2009
Text Updated: 12 March, 2009
Price: $10
Size: 1"
Purity: 30%
Neodymium