Chogulitsachi chimapangidwa ndi nsalu zapamwamba, zotambasula zachipatala, kupanga chidutswa chimodzi, kukwaniritsa mawonekedwe.Mapangidwe a ma buckles, osavuta kuvala ndikuchotsa, kuchuluka kwa elasticity kumatha kusinthidwa.Kugwiritsiridwa ntchito kwachitsulo choteteza m'chiuno chachitsulo sikumangirira m'mphepete, pamene mukusewera ntchafu yokweza chiuno, chitetezo cha m'chiuno chikuwonekera kwambiri.Ma size angapo amapezeka kuti asankhidwe, omasuka kwambiri.