Isku-xidhayaasha magnetic waxaa lagu shaqeeyaa bambooyin birlab ah oo aan shaabbad lahayn, oo aan dareerin oo loo isticmaalo in lagu xakameeyo dareerayaasha kacsan, ololaya, daxalka, sunta ah ama dareeraha ur xun. Giraanta birlabeedka gudaha iyo dibadda waxaa lagu rakibay birlab joogto ah, oo hermetically laga shaabadeeyey dareerayaasha, oo isku dubaridan dhowr tile.