Cold Steel Chaos Double Edge Black Aluminum Handle Plain Edge. This Knife from Cold Steel features a 7.5 in. black SK-5 high carbon steel tanto blade with a 6.0 in. black aluminum handle. The Secure Ex Sheath that is included with the Cold Steel Chaos Knife will keep your knife perfectly secure while making it easy to access. Specifications for Cold Steel Chaos 13.5in Knife w/ Black Aluminum Handle: Manufacturer: Cold Steel Blade Length: 7.5 in Overall Length: 13.5 in Blade Shape: Double Edge Blade Material: SK-5 Knife Application: Fixed Blade Included Accessories: Secure-Ex Sheath Handle Material: 6061 Aluminum Blade Finish: Black Handle Color: Black Handle Length: 6 in Blade Thickness: 4.5 mm Handle Finish: Black Aluminum Sheath Material: Molded Polymer Weight: 17 oz Features of Cold Steel Chaos 13.5in Knife w/ Black Aluminum Handle: SK-5 High Carbon Package Contents: Cold Steel Chaos Knife with Plain Edge Fixed Blade Glass Breaker Aluminum Handle SecureEx Sheath Cold Steel CS-80NTP: Chaos Double Edge Black Aluminum Handle Plain Edge