Arkansas Sharpeners Soft Whetstone 6in. x 2in. x 1/2 AC9. This Knife Sharpener from the knife experts at Arkansas Sharpeners measures 8" x 2" x 1/2" and comes mounted on cedar block. Don't you dare buy a knife without the Arkansas Sharpeners Soft Whetstone. Features of Arkansas Sharpeners Soft Whetstone Knife Sharpener: Soft Arkansas Whetstone Measures 8" x 2" x 1/2" Mounted on cedar block Package Contents: Arkansas Sharpeners Soft Whetstone Arkansas Sharpeners AC9: Soft Whetstone 6in. x 2in. x 1/2