40 x 23 x 6mm Powerful Rare Earth Magnet Ring N38SH Ni - MPCO Magnets 【Anti-corrosion】- Coated with Nickel-Copper-Nickel 3 layers metal, our NdFeB magnet has no rust when you put it in the air for a long time. 【Warning】- Be careful with magnets because strong ones can hurt your fingers. 【Super Strong】- Be produced by rare earth material and are composed of neodymium (Nd), iron (Fe), and boron (B), with the highest grade N52, our neodymium magnet has the strongest strength compared with other similar size magnets. N42 Small Powerful Rare Earth Magnets- 1/4 D X 1/8 H - 120 Pack, Silver Super Strong Neodymium Disc Magnets Fridge Diy Building Scientific Craft Office M 791faeba 755c 4524 9270 6ea9aefed68c.b26511f97a4cdf9f78791ad10b1372e5 Permanent Magnets: These magnets retain their magnetic properties once magnetized and are commonly made of materials like neodymium, samarium cobalt, and... When pulling apart big magnets, be sure to do it the right way. Strong disc rare earth magnets AplysiaTech N52-1/2 D x 3.00 H - 2Pack, Most Powerful Rare Earth If you do it wrong, the magnets can get too strong and easily break.
