Amazon.com: Misono AMSO301 Combination Whetstone (Rough。SHAPTON JAPAN Professional Ceramic Sharpening Whetstone。Japanese Whetstones & Sharpening Stones for Japanese Knives。Suehiro New Cerax Combination #1000/#3000 Knife Sharpening。
Size (L x W x H): 7.1 x 2.4 x 1.2 inches (180 x 60 x 30 mm)
■Manufacturer Part Number: T-4
■ (rough whetstone #280/medium whetstone #1000) size is only the whetstone part.