Khofi ya khofi yokhala ndi kopanira imasunga khofi watsopano komanso wokoma kwambiri posindikiza thumba mukatha kugwiritsa ntchito, Chosindikizira chosindikizira chimagwiritsa ntchito kasupe wamphamvu, chisindikizocho chimakhala cholimba kwambiri ndipo sichapafupi kutsika.Zabwino kwambiri zothira khofi ndi koko.