This Tri-Stone is handmade of solid willow oak and comes with a bottle of honing oil, angle guide and detailed sharpening instructions. The all purpose system starts with a silicon carbide stone (coarse), moves up to a 'Soft' Arkansas stone (medium) and finishes the edge with a 'Hard' Arkansas stone (fine). This is an easy-to-use sharpening system for ALL pocket knives, fixed blade knives, kitchen cutlery, wood carving tools and chisels. You will not find a better set of Arkansas Sharpening Stones at this great price. Made in Arkansas, USA.
Silicon Carbide Coarse Stone (250 Grit), 'Soft' Arkansas (500 Grit), 'Hard' Arkansas (700 Grit)
Stone sizes are: 8" x 1 1/2" x 1/2"