$150, free shipping within CONUS
These stones are great, but I've switched over to the Sharpton Glass Stone series, so these are redundant. The Arashiyama is an awesome stone to hone with. It's my favorite of the bunch.
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EDIT: The 220 and 400 sold already. So the other two will be broken out of the set and price will be figured out.
EDIT2: They have all been sold.