The Sheffield® Utility Series 12125 mini quick change Lock Back® utility knife features a one-hand opening operation for ease of use as you cut through obstacles such as paper, cardboard and more. It boasts a quick-change mechanism for quick and easy blade replacement. This tool features 6 mini utility knife blades, where 5 are stored in the handle and a bonus 6th one is in the blade holder. This knife has a lightweight ABS handle for maximum grip and comfort and includes a key chain for your convenience. You can cut through twine, boxes and more with ultimate ease. As always, Sheffield®'s industry leading lifetime warranty has your back.