NdFeB Magnets with Arc Shape are incredibly powerful for their size, with an approximate pull strength of up to 300 lbs. Neodymium magnets are the strongest permanent, Rare-Earth magnets commercially available today with magnetic properties that far exceed other permanent magnet materials. Their high magnetic strength, resistance to demagnetization, low cost and versatility make them the ideal choice for applications ranging from industrial and technical use to personal projects. U-POLEMAG stock basic geometric shapes in various thicknesses and premium grades ranging from N35 to N52. Finishing options include uncoated or with a triple-coated (Ni-Cu-Ni) shiny nickel finish for optimal protection against corrosion