Added pics and specs to KS-1900UCBLK Kershaw E.T. External Toggle – Urban Camo with Black Blade
The External Toggle enables the user to open or close the blade with one hand, either right or left. With just a little practice it is super-fast and incredibly easy to use. And for extreme blade security, just fold the blade in, engage the E.T. safety, and the blade is completely secure no matter how or where you carry it. To take advantage of this fact, the E.T. also has a built-in carabiner function that enables you to clip it to a belt loop so the knife is always handy. A reversible pocket clip for left or right hand carry is also included. Sandvik 13C26 Stainless steel blade measuring 3.25″. 4.75″ closed length. Weighs 3.7 oz. Features built in carabiner function. Partially Serrated Edge. Black blade, anodized Urban Camo patterned handle.
More information here:
http://www.1sks.com/store/kershaw-1900ucblk-et-external-toggle-urban-camo.html