The multiple pole design of our rubber coated Neodymium (NdFeB) or Rare Earth pot magnets ensures a dense shallow magnetic field on the holding surface. This allows for excellent holding onto thin surfaces such as car body metal.or point of sale gondolas. With excellent holding force up to 42 kg it is resistant to slippage even when holding or clamping heavy items. They offer a scratch free alternative to standard Neodymium magnets. Note: the bar magnets are very fragile. It is forbidden to collide with other metal objects (including other magnets), so be careful when trying to separate them Strong neodymium magnets bar are made of neodymium iron boron magnetic material. They can attract various materials made of ferromagnetic elements. Strong magnetism lasts forever! Neodymium bar magnets are coated with three layers of ni+cu+ni, so they provides a shiny and rust resistant protection for rectangle magnets. Strong magnets are sturdy and reliable, when you separate the strip magnets, be careful and slide gently. Heavy duty super magnets & absolutely magnets highest grade (N52) available. We manufacture these super strong disc magnets to help you when you need a super powerful magnet.. Whether you need these powerful disc magnets to hang a tool in magnets garage keep knives safe & secure or even keep magnets plastic sheeting on your greenhouse these magnet discs get magnets job done. magnets round neodymium disc magnets. Our strong thin disc magnets are small in size but oh so powerful & are plated in a nickel-copper-nickel coating for a shiny corrosion-resistant finish. magnets pull force of this magnet is 80kg. This is a great item for use in your personal projects as well as for crafts and closures and can also be used to help keep objects secured or fastened to any ferrous surface. magnets north and south poles are on magnets flat face (red marked north). Yup, holding stuff to other stuff is what these rare earth magnet discs do best. These industrial strength magnets come with Teflon separators to both protect your disc magnets and make separating them easy.