Uline H-1370 Retractable Blade Utility Knife with Rubber Comfort Grip and Extra Blade Storage RETRACTABLE BLADE: A spring-loaded system onboard the knife automatically retracts the blade when its not in use, keeping you from getting accidentally cut BLADE STORAGE: Extra blades can be stored in the handle. To eject this compartment, simply press the button located at the knifes base and pull it out ERGONOMIC RUBBER HANDLE: The handle has a rubber coating that allows you to apply extra force to your cutting projects without having it slip from your hands EASY BLADE REMOVAL: To remove blades for disposal and replacement, simply press and slide up on the plastic cover that is flush with the blade IMPACT RESISTANT: The carbon steel blade housing will hold up to the rigors of the warehouse or construction site, resisting damage from falls and other jobsite dangers so you can keep working