I recently started riding bikes and for my first bike I chose a fixie. Good stuff, its kicking my sss and having me asking for more. I wanted to change my flatbar to a drop style. Browsing online, I saw this. Is that two brake levers on one base thing or are those shifters? If not, is there such thing?

http://newjersey.craigslist.org/bik/2307753151.html