Smith's Sharpeners Diamond Tri-HoneEdgeSport Series. 12" x 6 1 8" x 5" base. Black composition housing with black non slip rubber feet. SmartSharp features. 8" x 2 1 2" coarse and fine diamond stones and natural arkansas finishing stone. Interrupted surface speeds sharpening. Features Micro Tool Sharpening Pad this area allows you to sharpen those small tools and instruments that require an uninterrupted sharpening surface. Non petroleum based honing solution. Angle guide. Sharpens