Handy little pocket sized tool with & adjustable angle of 0 to 5 degrees. Comes complete with mini Oxide Stone, for taking off burrs & case hardening from ski edges. Compact side edge tool with mini oxide stone. Our Opinion Great to have in your pocket for quick touch ups if you hit something nasty & damage an edge. Is This For Me? If you forever scuffing your edges up but want to keep them in shape, this tool will allow you to do so on the mountain.