Style: Replaceable Scalpel Blade Material: High Carbon Steel Hardness: 60-63 HRC Includes 3x #60 and 2x #70-Style Blades Dual-Action Switch that functions as Ejector and Lock Material: 440C Stainless Steel Heat Treatment: 54-57 HRC Removable Scales: Solid Black G10 with Peel Ply Texture Lanyard Hole Specs: Overall Length: 7" (178mm) Blade Length: 2.5" (64mm) Handle Length: 4.5" Blade Steel: 440C Handle Material: G-10 Weight: 1.4oz Country of Origin: USA