The Maintenance Stone is for regular use to keep your edges sharp factory sharp, and leaves a fine finish to the edge. Messermeister designed this stone for those who are interested in keeping a razor-like edge on their kitchen cutlery. The 1000 grit side is excellent for maintaining a very sharp edge. The 3000 grit side is great for finishing the sharpest edges with a polish. This stone provides a complete solution to maintaining the sharpest kitchen cutlery.  Features Dimensions: 8" x 3" x 1" Two-sided; 1000 & 3000 Grit Clog free surface Silicone base for secure sharpening 100% Messermeister quality Care Hand wash only Do not place in dishwasher