You can change the slider content or you can add more item just duplicate the code file
<div class="item">
<div class="inner-box">
<div class="img_holder">
<a href="service.html"><img src="images/gallery/1.jpg" alt="images" class="img-responsive"></a>
</div>
<div class="image-content text-center">
<span>Better Service At Low Cost</span><a href="service.html">
<h6>Dormitory</h6>
</a>
<p>Lorem ipsum dolor sit amet consectetur adipisicing elit. Suscipit, vero.</p>
</div>
</div>
</div>