Made by Matsunaga Stone Co, this Deluxe model is 6 x 2 x 1/2 x 3/8 inches, 4000 grit, meant to polish and maintain fine edges. The size makes it easy to hold. Never used, in original box with original label on stone. Use both sides of this stone to hone both sides of your gouge. Typically the ground edge is the one used to sharpen - the smooth edge is honed only at the very end to remove the bur. Note: the seller is in Metchosin but can connect in Langford or Colwood