Our largest Go stones, this set of size 42 Yunzi stones are a whopping 11.9mm tall (approx. 7/16''), giving them an altogether significantly more solid heft than a standard 9.2mm Yunzi stone. The shape is noticeably different too, as the edges are rounder and fuller to balance the extra height. Note that the width is still a standard 22mm wide, so these stones will occupy essentially the same space on a Go board as their shorter cousins. Stones are coated with a gloss finish.

• 180 white and 181 black genuine Yunzi stones.
• These stones are double convex, size 42, and measure 11.9mm tall and 22mm wide (about 7/16'' x 7/8'')
• These stones will fit Japanese, Chinese and Korean standard size boards