Accusharp 4-in-1 Knife Black AS. This Knife Sharpener from the experts at AccuSharp measures 4 1/8" overall and combines every sharpening necessity into one pocket-sized unit. Featuring coarse tungsten carbide sharpening blades that sharpen all types of steels fine ceramic rods hone and polish your blade retractable diamond-tapered rod used for deep serrations with groove for all of your hooks and darts and retractable flat diamond stone for users who prefer a continuous surface for their sharpening needs the Accusharp 4-in-1 Knife Sharpener comes with an orange composition housing with black molded rubber feet to keep the unit steady while in use. Don't buy a knife without the Accusharp 4-in-1 Knife. Specifications for Accusharp 4-in-1 Knife Sharpener: Manufacturer: AccuSharp Overall Length: 4.13 in Blade Material: Steel Features of Accusharp 4-in-1 Knife Sharpener: Measures 4 1/8" overall Combines every sharpening necessity into one pocket-sized unit Featuring coarse tungsten carbide sharpening blades that sharpen all types of steels fine ceramic rods hone and polish your blade retractable diamond-tapered rod used for deep serrations with groove for all of your hooks and darts and retractable flat diamond stone for users who prefer a continuous surface for their sharpening needs Orange composition housing with black molded rubber feet to keep the unit steady while in use Hang packaged Package Contents: Accusharp 4-in-1 Knife Accusharp AS029C: 4-in-1 Knife Black