Mtengo wa balancer ya Spring ndi chida chapadera choyimitsira, chomwe chitha kugwirira ntchito pogwiritsa ntchito zida, kusuntha zida ndi kutopa kochepa & kogwira ntchito kwambiri. , njinga zamoto ndi zida zanyumba komwe zida zimayenera kupachikidwa. 50kg kasupe balancer adzakhala chisankho chabwino chochepetsera kulimbikira kwa antchito ndikuwonjezera zokolola.