Lifensetere tsa sebopeho se ikhethileng li u lumella ho khetha ho tsoa mefuteng e fapaneng e sa tloaelehang, ho kenyeletsoa li-arches tse ntle, li-angles tse khahlang le li-curve tse qobellang. E sebelisoa e le 'ngoe kapa e kopantsoe le lifensetere tse ling, e eketsa boipiletso le ho ntlafatsa sebopeho sa ntlo ea hau.