Benchi Yokhala pa Olimpiki: Kukula kwa chubu 50x100mm, ndi makulidwe a 3mm, olimba kwambiri komanso okhazikika, kapangidwe kaukadaulo kakugwiritsa ntchito masewera olimbitsa thupi.Pakupanga, amapangidwa ndi Standard 3-wosanjikiza mphamvu zokutira.mpando wokhazikika wokhala ndi thovu wokhazikika.Zidzatengera inu mwatsopano maphunziro kumverera pa masewera olimbitsa thupi.