OTF Damascus Carbon Fiber Knuckles Automatic Knife Rainbow Dagger. Push the switch located on the side of the handle to deploy the hidden blade. Damascus steel double-edged dagger point blade! The black and silver handle is made of strong zinc aluminum and features 4 large holes to slip your fingers into for a tight grip and extra support. A carbon fiber inlay on either side of the handle. An anodized black pocket clip and glass breaker are also featured on the handle. Included is a quick-release black nylon carrying case belt loop. Overall Length: 10 inches, Blade Length: 4 inches