I hope this is allowed. I made myself a rack for some of my stones. But the old measure twice, build once bit me in the butt. I was thinking I was sizing it to fit my Kuromaku stones too. But I shanked it. And it will only fit stones that are 13mm or less thick. It has 8 slots. It's free for anyone that wants it. You'd just have to pay for shipping. In the US. It's around $5 through Shippo, or Pirate Ship.