CMS Magnetics® Grade N52 Neodymium Magnets 1"x1"x1/2" 1 Ct.
This neodymium magnet is 1 inch (25.4mm) X 1 inch (25.4mm) X 1/2 inch (12.7mm) block. They are composed of grade N52 neodymium magnetic material and are plated in nickel-copper-nickel for a shiny corrosion resistant finish. The N and S poles are on the 1"X1" flat surfaces.  All the tolerances are +/-0.002".Magnetic Characteristics:Gauss Ratings: 14,900.Maximum product energy: 52 MGOe.Holding power: 64 lbs.Applications:  crafting, holding and fishing etc.