The Sheffield Utility Series 12125 mini quick change Lock Back utility knife features a onehand opening operation for ease of use as you cut through obstacles such as paper, cardboard and more It boasts a quickchange 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