Sharpener. 4 3/8” closed. 3 3/8” grooved, fine grit diamond sharpening rod. Three different sized grooves will sharpen hooks up to size 14/0. Grooved white composition handles with rubberized overmold. Handles are made of marine grade materials and will not discolor in saltwater applications. Handle folds for ease of carrying. Can be used to sharpen both hooks and knives. Hang packaged.