The Sheffield 12514 3 Pack of Folding Lock Back Utility Knives all feature a one-hand opening operation for convenience as you cut through obstacles such as paper, cardboard, and more! These Sheffield Utility Knives also boast a quick-change mechanism for a quick and easy blade replacement procedure, using standard utility knife blades. They feature lightweight aluminum handles for ease of use and include a belt clip for easier carrying. You're all set to cut through twine, boxes and more with "ultimate" ease. As always, Sheffield's industry-leading Lifetime Warranty has your back. Patented Quick Change Blade Mechanism Lock Back Release Lightweight Aluminum Texture Grip Handle Pack of 3 Utility Knives 4 Ounces, 6 Inches Overall 3-1/2 Inches, Folded Accept All Standard Utility Blades 3 Blades Included Sheffield's Lifetime Warranty