Naniwa Combination Sharpening Stone | #1000-#3000 GritNaniwa combination stones. Great for compact storage or if you are a chef on the go. Gives you two grit sizes in one. This set works well with a #220 or #400 in your kit. #1000 grit for medium wear and and new bevels #3000 grit for polishing and edge upkeep Dimensions: 210mm (L) x 70mm (W) x 20mm (H) We stock a range of Naniwa products for knife sharpening. They have become the gold standard for excellent quality abrasive stones designed for