CMS Magnetics® Grade N45 1/2 x 1/4 x 1/16" Neodymium Magnets, Package of 25 Rare Earth
Rare earth magnets are the strongest type of permanent magnet currently made. They are amazingly powerful for their size and have innumerable uses. These magnets are 1/2 inch (0.5) x 1/4 inch (0.25) x 1/16 inch (0.0625) block. They are composed of grade 45 neodymium iron boron magnetic material and are plated in nickel-copper-nickel for a shiny corrosion resistant finish. Their individual pull force is approximately 3.2 lbs.Notes:1. All magnets are fragile so are these magnets. They may snap and shatters. But if used properly these magnets can serve you for a life time.2. Keep them away from kids under 5 years old. And also keep them away from pacemakers and other physical devices.