Product ID: SMBN1547
Dimension: 5.75mm (0.226in) x 2.60mm (0.102in) x 1.95mm (0.077in) thick
Coating: Nickel Coated Magnets
Magnetization direction: magnetized through 1.950 mm thickness
Max Operating Temp(C/F): 80/176
North pole marked with a black stripe in permanent marker.Neodymium Block magnet is made of rare earth magnetic material, also called NdFeB magnets, or neo magnets, super powerful magnets.