Specifications: Super strong rare-earth magnets, useful and practical. Used for: acoustic field, electronics, electrical field, machinery and equipment, healthcare, wedding corsage badges, etc. Type: Strong Neodymium Magnets Shape: Disc Grade: N35 Quantity: 1Pc Color: Silver Shape: Round Material: NdFeB Magnetic Materials Size: 25mm x 5mm/0.98" x 0.02" (Approx.) 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 crane, magnetic machinery. 5. Healthcare: MRI scanners, medical equipment, magnetic health products and so on. 6. Wedding Corsage Badges, 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. Notes: These magnets are very powerful which should be handled with great care. Especially pay attention to the small magnets, please place in somewhere children can't reach. Keep the magnets away from pacemakers and magnetic storage devices such as mobile phones, bank cards and computers. Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Strong Neodymium Magnets