The EZ3 Auto-Retract Safety Safety Knife is a light weight and easy to use safety cutter. To prevent painful and costly injuries, the blade springs back into the cutter once the cut is completed. With a shorter blade depth the contents of boxes are less likely to get damaged. The unique integrated hinge design and easy-open dial make for a convenient tool free blade change. Purchase with the UKH-430 Holster and CL-36 Lanyard.