Ha u kenya li-racks, haholo-holo tse hlokahalang ho mamella meroalo e boima, ho bohlokoa ho khetha li-brackets tse loketseng mosebetsi. Maemo a rona a boima a etselitsoe ho khotsofatsa litlhoko tsa matla le mamello. E entsoe ka tšepe ea boleng bo phahameng, li-brackets tsena li lekoa 'me li pakoa hore li matla haholo, li u lumella ho kenya lishelefo tsa hau ka mokhoa o sireletsehileng ntle le ho tšoenyeha.