Double-action blades are also more efficient, allowing you to easily deploy and retract the blade multiple times per minute. This automatic knifes blade travels within an internal track or channel inside the handle that is deployed by a slider. This tanto blade is made from stainless steel with a two-tone finish. The grip is made from zinc alloy in brushed brass that is contoured for a comfortable grip. There are sand paper inserts for working in wet conditions. The single-button deployment and retraction mechanism makes them well-suited to outdoor adventures and DIY tasks that might require you to have one hand free to work while the other operates the knife. A glass breaker is featured end of the handle with a steel pocket clip. Also included is a quick release nylon sheath too. Let's be honest; double-action blades are simply more fun to use. The click and action of the blade deploying and retreating is very satisfying.Overall Length: 8.50 Inches REQUIRED FORM FOR SWITCHBLADES & AUTOMATIC KNIVES