This extra large combination stone restores a sharp cutting edge to straight-edged tools and knives. Can be used on gouges, draw knives, spoke shavers, carvers, kitchen knives, scissors, snips and scrapers. Use the Brown (Course) side to start a new edge or remove nicks and chips. Use the Light Gray (Fine) Side for refining and maintaining a keen edge. Made in Mexico. Lubricate with Norton oil for best results, oil is a lubricant that will float away metal and abrasive dust that can clog the pores of the stone. 8"x2"x3/4"