Magnetic Grade: N38. Magnetic Grade: N45. · N38 N45 grade and powerful, large pull force. · The magnet cubes are made of quality NdFeB material, shiny and smooth, anti-rust and anti-corrosion, sturdy and durable.
Magnetic Grade: N38. Magnetic Grade: N45. · N38 N45 grade and powerful, large pull force. · The magnet cubes are made of quality NdFeB material, shiny and smooth, anti-rust and anti-corrosion, sturdy and durable.