PhaZZer manufactures high quality knives that feature a 440 stainless steel blade sharpened to a razors edge by the finest precision machinery. PhaZZer JG-L190 also features a belt or back cut blade on the under handle, spring assisted flip out function with locking mechanism to secure the blade. All PhaZZer knives have a heavy duty window punch. PhaZZer knives suggested use are strictly for utility purposes, survival and emergency type situations. PhaZZer Knives (as well as all PhaZZer^® brand products) include a full one year warranty PhaZZer^® Patch The PhaZZer Patch is embroidered with the PhaZZer Double Dragon and PhaZZer Electricity Logo. This durable patch has Velcro backing for easy placement.