Set of 20 magnets 1/2" long x 1/4" wide x 1/16" thick (12.7 mm x 6.4 mm x 1.6 mm) Material: Neodymium (NdFeB) Grade: N48 Coating: Nickel (Ni) Magnetization: Through Thickness Pull Force: 2.4 pounds. SKU# M12x14x116BL