Hi,

If it is post navigation, It is possible by the custom CSS like:

.post-navi-hover-show-img .label-text:after, 
.post-navi-hover-show-img .label-text:before {
 display:none;
}
.post-navi-hover-show-img .label-text { 
    padding-left: 50px;
    background-position: 100% 50%;
    background-repeat: no-repeat;
    background-size: 50px;
    background-image: url(https://cdn3.iconfinder.com/data/icons/flat-icons-web/40/Left_03-128.png);
}
.ux-right.post-navi-hover-show-img .label-text  {
    background-image: url(https://cdn3.iconfinder.com/data/icons/flat-icons-web/40/Right_03-128.png);
    padding-right: 50px;
}

ps: please replace the arrow image urls as your own files.

Regards!
SeaTheme – FAQs – WordPress Customization – Facebook