Zero Tolerance's Scavenger knife features SpeedSafe® assisted opening system. This Ken Onion designed assisted opener has Trac-Tec handle inserts for sure grip and a modified Tanto blade with a Tungsten DLC coat. This model, the 400ST has a part serrated blade that opens on a 5/16" pivot shaft that allows you to tighten or loosen the blade deployment speed. The Scavenger is a fabulous amnbidextrous thumb stud or index-finger opener that has smooth action. SPECIFICATIONS: Blade S30V stainless-steel with Tungsten DLC coating , Tanto Point, Part Serrated Handle: Black Anodized Machined aircraft aluminum Blade Length: 3 5/8 in. Closed Length: 5 in. Weight: 5.3 oz.