Udupira two gusimbuza twa MND-C73B dushobora guhindurwa dutanga uburenganzira bwo kugera ku gikoresho cyose cyo gusimbuza ibyuma gifata umwanya muto cyane. Udupira two gusimbuza ibyuma dushobora gusimbuza ibyuma kuva kuri bitatu kugeza kuri 15 (cyangwa birenga) mu itsinda rimwe, bigatuma biba amahitamo meza yo kuzigama umwanya ku muntu wese ukora imyitozo yo gusimbuza imbaraga mu rugo. Ibyo biroroshye iyo ushora imari mu itsinda ryo gusimbuza ibyuma, rishobora guhinduka kuva ku byoroheje kugera ku bikomeye ukoresheje uburyo bwo gusimbuza icyuma cyangwa guhindura imiterere y'ibikoresho.
Buri gicuruzwa gifite igishushanyo mbonera cya patenti cya Amerika, hamwe n'imiterere yihariye n'imikorere by'ubushakashatsi bwihariye. Harimo agasanduku ko kubikamo ibintu gashobora guhindurwa mu dusanduku two kubikamo ibintu mu buryo bwihariye iyo kadakoreshwa; buri gasanduku gafite ikimenyetso cy'uburemere bworoshye gusoma; gafata umwanya muto. Iyubakwa rirambye, utu dusanduku two kubikamo ibintu duhinduka dufite icyuma kandi twakozwe mu buryo buvanze na pulasitiki ikomeye.
Iyi dumbbell ikora byose hamwe iguha uburambe bwiza bwo gukora imyitozo ngororamubiri. Iyi dumbbell izamura amaboko n'umugongo. Ni nziza ku miterere, ubuzima bwiza, ndetse no kugabanya ibiro. Ishobora kandi gufasha gukomeza igice cyo hejuru cyangwa igice cyo hagati cy'umubiri wawe. Imiterere ihinduka ituma byoroha kuyishyira mu rugo.
1. Ibikoresho by'igicuruzwa: PVC + ICYUMA.
2. Ibiranga ibicuruzwa: Ibikoresho byiza, Nta mpumuro, Bika ikiganza neza.
3. Imyitozo y'ibanze, Iterambere ryo kuringaniza, Ingufu n'ubuzima bwiza, n'ibindi.