Description: 5pcs 12mm x 5mm Round Magnets Rare Earth Neodymium Magnets.    Specification: Shape:Round;  Material:NdFeB ma gnetic materials;  Product Size:12x5mm;  Quantity:5.    Usage: 1. Acoustic field: the speaker, receiver, microphone, alarm, stage audio, car audio and so on.  2. Electronics: permanent magnetic actuator vacuum circuit breakers, magnetic relays, meter, sound meter, a reed switch, sensors.  3. Electrical field: VCM, CD / DVD-ROM, generators, motors, servo motors, micro-motors,motors, vibration motors.  4. Machinery and equipment: magnetic separation, magnetic machinery.  5. Healthcare: magnetic health products and so on.  6. Wedding corsage badges, etc., can be replaced with a magnet attracts every other clothes pins, so as not to damage the dress.  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. Studio, bulk magnet can be used to adsorb screws and other parts, even wrenches and other tools.    Warning: These magnets are very powerful which should be handled with great care.  Do not allow children to play with them unsupervised as they could get injured.  Especially pay attention to the samll magnets, please place in somewhere children can't reach.    Care should be used when handling two magnets as they can pull together with such force that pieces of the magnets can splinter off and cause injury. Keep the magnets away from pacemakers and magnetic storage devices such as mobile phones, bank cards and computers.    Package Included: 5 x Magnets