DMT Ski and Snowboard 2 3/4in x 1in Black DMT. This Knife Sharpener from the craftsmen at DMT is a three stone set. Each stone measures 2 3/4" x 1" and features blue coarse grit 325 mesh. Don't explore the great expanse of mother nature without the DMT Ski and Snowboard Edge Care Kit 2 3/4" x 1" Knife Sharpener. Features of DMT Ski and Snowboard Edge Care Kit 2 3/4" x 1" Knife Sharpener: Three stone set Each stone measures 2 3/4" x 1" Blue coarse grit 325 mesh Black extra coarse grit 220 mesh and red fine grit 600 mesh For a performance edge on the slopes with just a few strokes of the diamond surface you'll achieve clean and crisp edges Hang packaged Package Contents: DMT Ski and Snowboard Edge Care Kit 2 3/4" x 1" DMT DMTWS7X: Ski and Snowboard 2 3/4in x 1in Black