Specifications: Featuring cuboid shape with dual hole, hard texture, stable performance, very good price. Application is extremely wide. Usage: Acoustic field: the speaker, receiver, microphone, alarm, stage audio, car audio and so on. Electronics: permanent magnetic actuator vacuum circuit breakers, magnetic relays, meter, sound meter, a reed switch, sensors. Electrical field: VCM, CD or DVD-ROM, generators, motors, servo motors, micro-motors,motors, vibration motors. Machinery and equipment: magnetic separation, magnetic crane, magnetic machinery. Healthcare: MRI scanners, medical equipment, magnetic health products and so on. Wedding corsage badges, etc., can be replaced with a magnet attracts every other clothes pins, so as not to damage the dress. For the overlying metal drawing board for fixing the drawing paper. Magnetic blackboard whiteboard fixed file drawings. Advertising magnets available to replace the original fixtures, at any time convenient to replace the ad content. Models piling, you can use small magnets to connect two widgets. Studio, bulk magnet can be used to adsorb screws and other parts, even wrenches and other tools. Type: Magnet Material: NdFeB Quantity: 1Pc Grade: N35 Features: Cuboid, Dual Hole, Strong Magnetism, Multipurpose Size: 30mm x 10mm x 5mm or 1.18" x 0.39" x 0.20" (Approx.) Hole Diameter: 4mm or 0.16" (Approx.) Notes: Please place it to where children cant find, in case of eating wrongly. Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Magnet