Dimensions: Stone = 6" x 1" x 5/32"; Plate = 3/32" Thick = Total thickness 1/4"</br></br>Product Description</br></br>220 Grit Medium Aluminum Oxide Water Stone, mounted on an aluminum stone blank. This stone is used for the initial sharpening on all dull knives.</br><br/>http://www.amazon.com/gp/product/B00CIV1N1O