Trench Knuckle Knife Black D/A OTF Automatic Knife Dagger Serrated. Overall Length: 9 Inches Blade Length: 3.5 Inches Blade Material: 440 Stainless Steel, Powder coated black finish Blade Style: Dagger Handle Length: 6 Inches Handle Material: Cast metal, Heavy duty construction Includes: Pocket Clip, Glass breaker, belt sheath. Comes with a limited lifetime warranty by Covert Ops USA