This Kershaw Ken Onion Scallion, Model KS1620ST, has a 420HC stainless steel 2.25 inch serrated blade with a T6 anodized aluminum handle. The Speed-Safe torsion bar allow this knife to be opened with one push. When closed this 2.3 oz Kershaw knife is 3.5 inches long. Technical Specs 420HC stainless steel serrated blade 6061-T6 anoldized aluminum handle 2.25 in blade Length: 3.5 in closed Weight: 2.3 oz