With razor blades being at the top of the list for work place related accidents, we've created the DX190 Pro Razor Knife with safety in mind. Utilizing our Double Lock Technology, anyone can work with confidence knowing that the added protection will prevent the knife from accidentally collapsing. The DX190 includes a storage compartment in the handle for extra blades. A quick flip of the lever on the body of the knife will allow users to replace blades quickly as needed. The knife is fitted with standard sized double ended utility blades.