Hama Goishi (Clam Shell Go Stones) Size 28, Nachiguro (Black Go Stones) Go-ke (Go Stone Bowls) This is a set of go stones and go stone bowls. *Go board not included. Both the go stones and the go stone bowls have a deep, aged look, but are still in usable condition. How about this exquisite item for those looking for something with a sense of weight and substance? [Go Stones] Genuine Hama Goishi (Clam Shell Go Stones): 177 stones Width: Approximately 21.7mm Thickness: Approximately 7.6mm Nachiguro Go Stones: 182 stones Width: Approximately 22.2mm Thickness: Approximately 8.1mm It appears to be size 28. Please refrain from purchasing if you are concerned about used items or are looking for a perfect item. Please be sure to check the images. Go Stones Size 28, Clam Shell, Nachiguro