CMS Magnetics®N52 Neodymium Magnets 2″ X 1″ X 1/2″ NdFeB Rare Earth Block MagnetsNote: For Commercial Use OnlyDescription N52 is the highest grade available for patent licensed neodymium (NdFeB) magnetic material. Compared to other magnets of the same size, this magnet is the most powerful available. Produced by state of the art technology, this magnet is made of high quality rare earth magnetic material under the ISO9001 quality systems. The heavy duty coating consists of a triple layer of Ni+Cu+Ni (Nickel + Copper + Nickel), which provides resistance to corrosion in addition to its aesthetically pleasing silver finish. Strong magnets have many uses, such as science projects, fixtures, and DIY projects. Materials: Sintered Grade N52 Rare Earth Magnet MaterialGauss Rating: 14,400 GaussHolding Power: 90.423 lbs eachCoating: Ni+Cu+Ni coated, the best coating availableTolerances: 2+/-0.002 x 1+/-0.002 x 1/2 +/-0.002″Applications: Personal Projects, DIY, Research, Wind Generators, Water Treatment Systems Note: All magnets are fragile and may chip or shatter but if used properly, it will last for a lifetime.Keep them away from pace makers or children under 10 years old. Older kids need to be monitored for using this magnet.For Commercial use only Features Super Strong Grade N52 Neodymium Magnets Stronger than N48, N50 etc. 90.423 lb Holding Power Each Magnet Patent Licensed Ni+Cu+Ni Heavy Duty Plating Details Brand: CMS Magnetics Color: Silver Weight: 4.270 Oz / pc Manufacturer: CMS Magnetics Material type: N52 Neodymium Magnet One-day shipping service option includes 1-business day handling · If you buy the item today we will ship it tomorrow using One-day Shipping service Shipping Terms: Your order will be processed within 1 to 2 business day after receipt of cleared payment. Transit time 2-5 business day. Orders are not processed for shipments on Weekends or Holidays. We will automatically email you with tracking number within 24 Hours of processing and shipping your order. We ship internationally but only limit to the locations where eBay ships to. Payments: We Accept Payments Via PayPal and Credit Card Immediate Payment is required Sales Conditions: 30 days in order to get your money back or item exchange*, buyer pays return shipping. Buyers Pay for Return Shipping Cost, Except Defective Items. Do not return the item before contacting us. Any return must HAVE a return authorization number provided by us. Notes: 1. All magnets may chip or shatter, but if used properly these magnets can serve you for a lifetime. 2. Keep them away from pacemakers or children under 10 years old. 3. Adult supervision is necessary when older children handle these magnets.