Specifications: Open: 165 mm / 6.45" Closed: 96 mm / 3.78" Blade length: 71 mm / 2.79" Blade thickness: 2.3 mm / 0.09" Weight: 60 g / 2.12 oz Blade material: 12C27, cryogenic treatment, 58~59HRC Handle material: G10 Lock: Slip joint The very versatile Criterion Collection M series integrates convenience and functionality. Everything in this group will assist with that home chore or unexpected outdoor emergency situation.