The crème de la crème of blade sharpeners, this incredible six-piece set is a godsend for every dull, worn-down knife in your kitchen. The adjustable bamboo sink bridge comes with four Japanese synthetic stones—a 400-grit stone (for repairing), a 1000-grit stone (for fine sharpening), a 5000-grit stone (for extra-fine polishing), and a cleaning stone. It works by sweeping your knife in gentle strokes on the lightly wetted surface to tune the edges for a razor-sharp effect. Includes: 400 grit glass water sharpening stone, 1000 grit glass water sharpening stone, 5000 grit glass water sharpening stone, bamboo sharpening stone sink bridge, cleaning stone for sharpening stones, Bob Kramer sharpening instructional DVD.