Tops Cuma HISS (High Speed Sentry). One piece 1095 high carbon steel construction with black traction coating. 6 1/4" overall. 2 3/8" blade. Skeletonized handle. Lanyard hole. Molded black Kydex® neck sheath with black finish neck chain. High speed, lightweight knife is ideal for an urban self defense tool. Designed by Waysun Johnny Tsai. The official knife of the Gi Joe Dreadnok Enemy ZARTAN. Featured on the cover of the IDW Gi Joe Comic Book: Snake Eyes and Storm Shadow issue #15.77. Packaged with TOPS emergency whistle.