Osborne Design AXIS locking mechanism Modified reverse tanto blade with ambidextrous dual thumb-stud opener S30V premium stainless steel blade (58-60HRC) Green anodized 6061-T6 aluminum handles with 410 stainless steel liners, color anodized titanium back spacer and a reversible tip up carry clip Blade is 3.40" with a thickness of .115" 4.47" closed, 7.87" open Handle is .41" thick, knife weighs 2.90 oz