For walttools's Tru Tint WB Stain

[tomohiko hirai]

It is Tomohiko Hirai with a job in Japan.
We want to hear foreign artisan.
We want to use the walttols's Tru Tint WB Stain in Japan.
Do you guys have been using any color?

1) rock
2) Trees
3) wood

We're worried there 40 colors.
Please tell me.