Use the Alumicutter with a razor knife or roller knife safely! You can measure and then use the Alumicutter as a cutting edge without changing tools! Alumicolor's recessed, non-slip backing keeps the Alumicutter secure, positioned with just a light touch, while the raised edge protects your fingers. Anodized aluminum is an ideal cutting edge because it is smooth, with an almost diamond-hard surface that will not nick or catch when you move your cutting tool along the edge. Available in Inches & silver in color.