They assist the springs in preventing the ship from surging, and they are also used to adjust the position of the ship along the jetty, especially when she is going alongside.
Zincedisa izipringi ekuthinteleni inqanawa ekugalelekeni, kwaye zikwasetyenziselwa ukulungiselela kakuhle indawo yenqanawa kufutshane nebrorho engena elwandle ekumisa kuyo inqanawa, ingakumbi xa ihamba kufutshane nayo.