Sharpener offers two 4 in x1 in surfaces in one lightweight, portable sharpener. Quickly restores a neglected edge. Folding red and blue plastic handles protect sharpener when not in use. Sharpens in a fraction of the time required by conventional stones. No messy oils needed; sharpen dry or with water.Used in applications such as knives, garden and specialty tools, general tool maintenance, woodworkers, chefs and other professionals. 5 in closed.