DMT gives you this excellent set for sharpening all your knives and tools. It includes four different textures (extra fine, fine, coarse, extra coarse) in easy to manage sizes (4.375" x 0.875"). Starting with the extra coarse whetstone and working in succession down to extra fine, you can produce an exceptional edge on knives, scissors, and other straight-edged tools. Comes with a black nylon carry sheath to keep your whetstones in their best condition.