Rubber isize magnet ni ugupfunyika reberi hejuru yinyuma ya magneti, ubusanzwe ikazengurutswe na magneti NdFeB yacumuye imbere, rukuruzi rukoresha urupapuro rwicyuma hamwe nigikonoshwa hanze. Igikonoshwa kiramba gishobora kwemeza magneti akomeye, yoroheje kandi yangirika kugirango yirinde kwangirika no kwangirika. Irakwiriye gukoreshwa mumazu no hanze ya magnetiki yo gukosora, nko kubinyabiziga.