Matsunaga Toshi Green Whetstone Asahi Tiger GC220 8.1 x 26.0 x 13.4 inches (205 x 66 x 34 mm)

It does go out of flat quickly but it is designed to do so in order to sharpen quicker. Previously my coarsest stone was 800 and I don't know how I went on without this. A bit coarser might be better however, as even small chips tend to take quite some time to remove.

I cannot comment on quality as I have not used it yet but it looks fine. But the dimensions given in the description are wrong whether read in inches or millimeters. Different dimensions are reported in different places in the description. The dimensions of the product as stated on the box I received are 205 x 50 x 25mm. Also not accurate, but closer to reality. Actual dimensions as measured are 207 x 54 x 25 mm (8 1/8" x 2 1/8" x 1"). It is disappointing because I wanted a 3" width stone to match my other stones. In one part of the description it is stated as an 8" x 3" x 1" product dimensions, exactly what I wanted. I don't know if "product dimensions" includes packaging, but including the Sun Tiger box it came in it is actually 2 1/4" width. So 3" is way off. In another part of the description it says 2.6" width. So the description is all over the place, but all the mistakes exaggerate the width. I can imagine some of the gross mistakes in Imperial (inches) dimensions might have been a result of misunderstandings by someone from a metric country, but the dimensions in metric are also wrong!

Great fast coarse stone, good buy.

Great primary stone for honing straight razors. It is used to create bevels and it works fast! The only "issue" is you have to soak this stone for at least 30 minutes before use.

It put a nice sharp edge back on my dull knives. I wish I had purchased this sooner. Great product.

Works great. U guys save my time a lot. Please keep on make this item

hard to mess up a stone

After a few minutes on this stone my terribly dull kitchen knives were nicely re-beveled and able to cut clean slices of 20-lb printer paper ...