Radial Ring Magnet - N38 0.83"OD x 3/5"ID x 3/5" Radially Oriented Magnetized Unipolar Neodymium Magnets for Electric Motor Wind Generator (N Pole Outside): Amazon.com: Industrial & Scientific
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Amazon.com: MISTI Stamp Tool Bar Magnet (N38; 2.5 x 0.5 inches); Designed and Manufactured by The Makers of The MISTI Stamp Tool, Creative Corners and Cut-Align Rulers
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