BYKES N42 Neodymium Super Strong Extremely Powerful Rare Earth Refrigerator Magnets 1/2" x 1/2" x 1/16" Square - Set of 50 50 magnets per Package. Each magnet is 1/2 inch x 1/2 inch x 1/16 inch thick Square Pull Force: 3.1 lbs, Great performance. NdFeB N42 Neodymium Magnets, stronger than N40, N38, N35 Super Strong Top Quality Rare Earth Neodymium Magnets Nickel-Copper-Nickel Triple Layer Coating for Maximum Durability and Protection against Corrosion WARNING: VERY STRONG MAGNETS. KEEP OUT OF REACH OF ALL CHILDREN. THIS IS NOT A TOY.