Ruko Coarse Grit Synthetic Whetstone Knife Sharpener with Leather Pouch (3-Inch) Carbo-Ark Coarse Grit Synthetic Whetstone Ideal for quickly prepping dull and damaged Edges Supplied with Leather Carrying Pouch Pocket sized - 3-Inchx1-Inchx3-/8-Inch, Weight: 1.92 oz. Lifetime Warranty