Description: N52 30x20x10mm Neodymium Block Magnet.    Specification: Material:Sintered NdFeB magnetic materials;  Grade:N52;  Length:30mm;  Width:20mm;  Height:10mm;  Color:Silver;  Weight:44g;  Shape:Cuboid;  Magnetizing direction:N & S pole is in the two largest faces;  Working temperature:80(℃).    Features: -Good quality at a rock-bottom price.  -Strong and durable.  -the tool is simple & easy to use.  -Small and beautifully designed.  -Strong practicability.  -High performance price ratio.  -Long life, small size.  -Practical and portable.  -Professional and technical.  -Nickel copper nickel is through three layer treatment to get the good rust prevention and corrosion resistance. The effect of nickel plating is better than those of single layer.    Fit for: 1. Acoustic field: the speaker, receiver, microphone, alarm, stage audio, car audio and so on.  2.Studio, bulk magnet can be used to adsorb screws and other parts, even wrenches and other tools.  3.Electronics: permanent magnetic actuator vacuum circuit breakers, magnetic relays, meter, sound meter, a reed switch, sensors.  4.Electrical field: VCM, CD / DVD-ROM, generators, motors, servo motors, micro-motors,motors, vibration motors.  5.Healthcare: MRI scanners, medical equipment, magnetic health products and so on.  6.Machinery and equipment: magnetic separation, magnetic crane, magnetic machinery.  7.For the overlying metal drawing board for fixing the drawing paper. Magnetic blackboard whiteboard fixed file drawings.  8.Advertising magnets available to replace the original fixtures, at any time convenient to replace the ad content.  9.Models piling, you can use small magnets to connect two widgets.  10.Wedding corsage badges, etc., can be replaced with a magnet attracts every other clothes pins, so as not to damage the dress.    Package Included: 1 X Magnet Block