<div class="menuBar">
    <ul class="nav nav-justified">
        <li>
            <a href="#" class="menuItem">
                <i class="glyphicon glyphicon-asterisk"></i>
            </a>
        </li>
        <li>
            <a href="#" class="menuItem">
                <i class="glyphicon glyphicon-asterisk"></i>
            </a>
        </li>
        <li>
            <a href="#" class="menuItem">
                <i class="glyphicon glyphicon-asterisk"></i>
            </a>
        </li>
    </ul>
</div>

.menuBar ul {
    text-align: justify;
}
.menuBar ul li a {
    display: inline-block;
}
.menuItem {
    font-size: 24px;
}