Naniwa "New Super Stone" 1000 Grit Japanese Whetstone Sharpening Stone, NO Stand, 21cm x 7cm surface, 2cm thick.
This fine stone is used for prepping a final edge. This will smooth out the initially rough edge left by by a coarse stone or will return the burr for final finish with an extra fine 5000 grit stone.
These are excellent stones, but are considered one step down from the top of the line Chosera (now rebranded "Professional Stones") which use a different bonding method for a somewhat nicer feel and faster cut, but at the expense of higher prices and more fragility. I use the SuperStone series at home and they're great.
Note: these are now branded "Super Stones" again and now come in a grey box that says "Super Stone"... in 2015 Naniwa re-branded them "Sharpening Stones" for the North American market, but I think they finally realized that didn't make sense so they're gone back to the better-known "Super Stone" name. The photo here shows the old "Sharpening Stone" box, but the one you'll receive will reflect the new "Super Stone" packaging. The stone is the same, just the packaging has changed.
NOTE: This is a full 2cm thick stone. It has been brought to our attention that other vendors are importing the cheaper 1cm thick version and then not always specifying the thickness on their web sites. Those stones are cheaper, and being half as thick will be more prone to breaking and will not last nearly as long as these normal full-thickness stones! We do NOT and have never imported or sold those cheaper 1cm thick versions of these stones.
Warranty: One-year warranty against manufacturing defects.