Some complain that the 220 wears out quickly and that's true. However, only use 220 on damaged edges or edges that need reprofiling. They come with basic instructions and those instructions are effective but vague. If you're new to hand sharpening, check out some YouTube videos. I recommend watching at least 2 from different channels as there isn't just one way to properly sharpen a knife. (Or other cutting tool) These stones are very comfortable to the touch. I have 220 (never used) 1000, 4000 and 8000. After going through these grits I get a high gloss finish and a silly sharp edge. The stones are smooth. Small grains are cut quickly, large grains are very gently. One thing I would have liked on the packaging was more clear. Once you've wetted your stone, you're ready to grind it. Close the blue box and place the stone on the box. Not in your case with the lid open. It took me too long to figure out that the lid has mounts to hold your stone. My stones came flat, but if yours aren't flat out of the box. Just soak the stone. Using 400 grit waterproof sandpaper and a smooth surface (smooth floor tiles will do), gently sand the stone until level. Shoot only what you need.