This Kershaw Ken Onion Blur, Model KS1670BLK, has a black 440A tungsten DLC coated stainless steel 3 3/8 inch blade with a black anodized aluminum handle. The Speed-Safe torsion bar allow this knife to be opened with one push. When closed this 4.2 oz Kershaw knife is 4.5 inches long. Technical Specs 440A black tungsten DLC coated stainless steel blade black anodized aluminum handle 3 3/8 inch blade 4.5 inch closed length weighs 4.2 oz