Mavharuvhu ebhora akagadzirwa kuti ape simba repamusoro uye kuperera kuburikidza nekushandisa iyo yakafanana ine simba yakawanda-inotenderera gland system semuvharuvhu yetsono, iyo kana yabatanidzwa ne-anti-bloout back seating stem, inovimbisa kuramba kune ese maitiro ekushanda uye kumanikidza.