Great little stone. quite soft. not suitable for edge sharpening, but great for polishing and easy to use. leaves a hazy/fuzzy kasumi
Hardness (5 = Very Hard) : 2.5
Grain Scale (5 = Very Fine) : 4
Sharpening Speed (5 = Very Fast) : 3
Soaking Requirement: Not required
Size: 160 x 55 x 27mm