10pcs N35 Strong Block Cuboid Permanent Neodymium Magnets 20x10x4mm with 4mm Hole

Description: 10pcs N35 Strong Block Cuboid Permanent Neodymium Magnets 20x10x4mm with 4mm Hole Specification: Shape: Cuboid Material : NdFeB magnetic Grade: N35 Hole:Dia.4mm Size:20x10x4mm Quantity: 10pcs Feature: 1) Neodymium magnets are usually coated Nickel-Copper-Nickel plating to prevent the iron from rusting. 2) Neodymium (chemical symbol Nd) is element 60 on the periodic table. It is a rare earth metal and forms one of the Lanthanides series. When added to Iron (Fe) and Boron (B) (chemical formula Nd14Fe21B) the resultant magnets are the strongest magnets currently available. 3) Neodymium magnets are sometimes known as Neo, Neod or NIB magnets. Applications: 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, 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) Models piling, you can use small magnets to connect two widgets. 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) Healthcare: medical equipment, magnetic health products and so on. 9) Advertising magnets available to replace the original fixtures, at any time convenient to replace the ad content. 10) Other industries: magnetized Wax, pipe descaling, magnetic fixture, automatic mahjong machine, magnetic locks, doors and windows magnetic, magnetic luggage, leather magnetic toys, magnetic tools, gifts and packaging. Warning... 1) Strong magnets should Keep away from Ironware and some easily magnetized iron products, such as monitors, bank cards, computers, televisions, mobile phones and other. 2) These magnets are very powerful which should be handled with great care. Without parents supervised do not allow children to playing magnets as they could get injured. Especially pay attention to the small magnets please place in somewhere children can't reach place. 3) Magnets might affect water meter ,electric meter, gas meter and some metering equipment exist some inaccurate affect (Such as : if magnets placed near the meter, the meter will slow down). Package Included: 10x Strong Block Cuboid Magnets More Details: