Spyderco Double Stuff 2 Sharpening Stone CBN/Fine Ceramic Stone. One long edge of each stone also offers a radius for sharpening serrations. Ideal for hunters fisherman soldiers or anyone else who sharpens in the field the Double Stuff 2 comes complete with a brushed suede pouch. Specifications for Spyderco Double Stuff 2 Sharpening Stone: Manufacturer: Spyderco Included Accessories: Brushed Suede Storage Pouch Finish: Nitride Features of Spyderco Double Stuff 2 Sharpening Stone: Material: CBN/Ceramic Type: Pocket stone Abrasive on one side and fine ceramic on the other Elongated edge of each stone Includes brushed suede storage pouch Package Contents: Spyderco Double Stuff 2 Sharpening Stone The Spyderco Double Stuff 2 is a quality addition to the Spyderco lineup. For more great deals on Knife Sharpeners by Spyderco please browse our Spyderco Knife Accessories page. Spydercos Double Stuff two-sided pocket stone has long been the sharpening tool of choice for fishermen outdoorsmen and other knife users who needed a handy versatile sharpener for touch-ups in the field. The Double Stuff 2 takes this time-tested concept and does it one better by combining an aggressive Cubic Boron Nitride (CBN) abrasive on one side with a fine ceramic stone on the other. This allows the quick efficient sharpening of dull or chipped edges as well as the easy maintenance of well-sharpened edges in the field. To make the Double Stuff 2 even better one long edge of each stone offers a radiused surface for sharpening serrations and the fine stone includes a longitudinal groove for fish hooks and pointed tools. Ideal for pocket pack or tackle box the Double Stuff 2 comes complete with a handsome suede pouch. Cubic Boron Nitride (CBN) is Made in China - Fine Ceramic Stone is Made in USA