The Sheffield 12615 Folding Lock Back Hi-Vis Green Utility Knife features a one-hand opening operation for convenience as you cut through obstacles such as paper, cardboard, and more! This Sheffield Utility Knife also boasts a quick-change mechanism for a quick and easy blade replacement procedure, using standard utility knife blades. It features a lightweight aluminum handle for ease of use and includes 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.