.5" razor-sharp edge you can switch out with just the push of a button. Gives you the strength of a standard Knife combined with a surgical-quality cut whenever you need it. The second is a 3.1" Gutting Blade, for zipping through skin without cutting hair or piercing nasty internal organs. Both blades open and close independently so you can focus on the task at hand. Includes a belt sheath and 4 spare blades