The Sheffield 12514 three 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 mechanismLightweight aluminum texture grip handle4 oz, 6 in overallAccepts all standard utility blades