My first 1 ply j-pen blade. 10 mm. Back then I discovered, like many others, the special characteristics of the single ply. Mainly touch and the ability to drive with control. But I continued to buy other heavier one ply hinoky blades (and cheaper). Compared to the others is slightly flexible. I came to the conclusion now that it's not my favourite anymore. I have to use faster rubbers on it than I use on the others. Anyway, it's easy to find good combinations for it. The handle is kind of narrow for my hand. Aesthetically is a beautiful piece of craftsmanship.