1)size:1"x3",3pcs, 2)diamond grit: coarse,medium,fine 3)oval hole design 4)ideal for sharpening knives,scissors etc LX-3006,3PC MINI diamond whetstone1)working area size:1"x3"2)with high quality diamond coated,grit:coarse,medium,fine3)oval hole design4)with ABS plastic plate5)ideal for sharpening knives,scissors etc.