Set of 4 magnets 1" long x 1/2" wide x 1/8" thick (25.4 mm x 12.7 mm x 3.2 mm) Material: Neodymium (NdFeB) Grade: N48 Coating: Nickel Magnetization: Through Thickness Pull Force: 9.8 pounds SKU# M1x12x18BL NEODYMIUM MAGNETS ARE NOT SAFE FOR CHILDREN