Ansen Tools AN 215 8-Inch and 6-Inch Fine/Coarse Double Sided Aluminum Oxide Sharpening Stones, 2-Piece Two Combination coarse/fine Aluminum Oxide sharpening stones Designed to sharpen all types of edged tools and knives The two sized stones allow for different options when sharpening Ideal for all cutting tools, including chisels, knives, scrapers and scissors The Sharpening stones measure 8" x 2" x 1" and 6" x 2" x 1"