Kutevera ndekumwe kudhinda sirika kwatakaitira vatengi vedu, sezvauri kuona, kudhinda sirika kazhinji mune 1-3 mavara, uye maviri mavara ane chinhambwe.Chinhambwe chinowanzopfuura 3mm.
Sirika inodhinda inokumbira bhodhoro/chirongo chepamusoro chakatsetseka, chakapfava, taigona kudhinda tembiricha yesirika (iyo nguva yekuchengeta irefu, asi ruvara rwakareruka zvishoma) uye tembiricha yesilika yekudhinda (inotaridzika kupenya).
