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have no idea, I would guess 700-800 gram or about 28 ounces

Recently I came across this full size baby. I couldn't resist :)

I know, I've seen that. With this guys it slightly different story. I already spent few K$ and trusted them, so it would be stupid not to trust with the small stone ;)

I got some recently :) without stamps but from trusted source. I bought #2

http://straightrazorpalace.com/members/traskrom-albums-stones-picture8702-koma-nagura.jpg

I used them without soaking and got a result that I wanted and expected. I would say you can go without soaking them.

Some more nice pictures
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The seller recommended to dip naguras in water for a "few days".. Do you guys think that this is proper way to use them?

I received them few days ago Botan, Tenjo, Mejiro
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