Use your Slice 10513 Manual Pen Cutter on the job and at home to cut paper, plastic, or cardboard. The cylindrical, glass-filled, nylon handle houses a zirconium oxide ceramic blade with a finger-friendly edge that is sharp for materials, but resistant to cutting skin. The rubberized slider button pushes the blade out to one of three positions, and retracts manually. The blade is non-conductive, non-magnetic, non-sparking, and chemically inert, so it will never rust. This knife can be used whether you are left- or right-handed because it has an ambidextrous design, and the blade can be changed tool-free.