Let's start with the description from Luka, our founder:
If you are not a professional knife sharpener, katana polisher and if whetstones are not playing an essential role in your life, this stone is not for you. "Big Mamma" will last a long time, also for your day & night sharpening sessions. Be careful, the dimensions and weight of this stone is so big that if you spend more time on the stone than on your significant other and if she decides to throw the stone into you, you will probably die.
Moving on. A sharpening stone from renowned Japanese whetstone manufacturer King is an affordable choice for sharpening legends. If you ever run out of this stone, pour yourself some whiskey and lay down. You probably sharpened a gazillion knives and need some rest. #1000 grit stone is used for general sharpening. Suitable for Japanese and German kitchen knives, razors and carpentry tools. This stone can serve as a starting stone to achieve good sharpness even with medium quality knives, used for slicing meat, seafood and vegetables.
If we ranked King stones, we would give it an "Economy Plus" mark, compared to our SharpEdge "Economy" stones. The main difference lies in the manufacturing process. King stones are not just pressed into the shape, but also "baked". This reflects in less stone wear during sharpening (meaning they will last for a longer time), but it takes slightly more experience and patience with knife sharpening, as King stone will generate less slurry than the "Economy" stones.
Dimensions: 230 × 100 × 80 mm (9.1" x 3.9" x 3.2")
Weight: 3.4kg (7.5 lbs)