Rubber
Imashini ya reberi ikorwa no gusohora cyangwa gutanga kalendari kandi irashobora gukoreshwa kugirango ikoreshwe ahantu hose kuva ku biro kugeza mu bubiko, igaraje kugeza ku meza y’ubukorikori, na resitora kugeza mu byumba by’ishuri.Gereranya nubundi bwoko bwa magneti, reberi ya reberi yerekana ko ihindagurika cyane, irashobora kugororwa, kugoreka, gutondekwa, gucamo, gukubitwa, naho ubundi bigakorwa muburyo ubwo aribwo bwose nta gutakaza ingufu za rukuruzi.SDM irashobora guhimba magneti yoroheje kubunini bwanyuma wifuza.