The GFS 221 is a compact sharpener designed specifically for use in the field. Five abrasive steps provide the complete sharpening solution. The built in angle guides ensure a consistent bevel angle across the entire edge of a blade. All elements are self contained and require no set-up or assembly in the field. Sharpens plain and serrated blades, scissors, fish hooks, garden tools, broadheads, axes, machetes, and so much more! Also features a lanyard hole for easy carry.