Includes 8 Ultra Flex 7 Tapered Flex - Revamped Hard Sided Case for Increased Protection - Stores up to 4 Blades and 2 Handles (Includes 2 blades and 1 handle) - First of its Kind-Interchangeable Blade System - The First Full-Tang Replacement Blade on the Market - Iconic Non-Slip Grip - Titanium-Nitride Blade Coating - Full-Tang Locking System - Lanyard Hole - Most Versatile Fillet Knife on the Market