Magnets NdFeB waxay ka kooban yihiin inta badan neodymium (Nd), iron (Fe), iyo boron (B).Waxaa lagu sameeyaa habka birta budada ah, kaas oo alaabta ceeriin lagu dhalaaliyo, lagu tuuro jeexjeexyada, la jajabiyo qaybo yaryar, ka dibna lagu cadaadiyo qaabka la rabo.Magnets NdFeB waxay leeyihiin cufnaanta tamarta sare, taas oo macnaheedu yahay inay ku kaydin karaan xaddi badan oo tamar birlab ah mug yar.Waxay sidoo kale soo bandhigaan sifooyin birlab ah oo aad u fiican, sida jujuub sare (awood u leh inay iska caabiyaan demagnetization), joogitaanka sare (awoodda lagu hayo magnetization ka dib marka goobta magnetic dibadda laga saaro), iyo cufnaanta qulqulka magnetic sare (qadarka qulqulka magnetic halkii unug ).