Smith & Wesson S&w Knife M&p Special Ops 4'' Tanto 4 Spring Assist Black. With an assisted opening stainless steel blade it is spring assisted for fast and easy opening. Thumb studs on the closed knife provide a 2-finger squeeze to open the knife while a fingerguard on the open version provides cover for your fingers. Thumb studs on the open version provide cover for your fingers as well to prevent the knife from closing accidentally. Both of these features come in handy in case of emergency self-defense or even just in case you want a tactial back-up for your pocket. Specifications for Smith & Wesson S&w Knife M&p Special Ops 4" Tanto 4 Spring Assist Black: Manufacturer: Smith & Wesson Blade Length: 4 in Closed Length: 4 in Blade Material: Stainless Steel Overall Length: 7.5 in Handle Finish: Black Matte G-10 Composite Weight: 2.6 lb Package Contents: Smith & Wesson S&w Knife M&p Special Ops 4" Tanto 4 Spring Assist Black