AccuSharp Knife SharpenerBlue Handle Diamond-Honed Carbide Blade. The diamond-honed tungsten carbide blade inserts make quick of sharpening even the dullest knives in just a few strokes. It even sharpens serrated knives Specifications for AccuSharp Knife Sharpener: Manufacturer: AccuSharp Fabric/Material: Diamond-Honed Tungsten Carbide Length: 7.95 in Width: 4.6 in Height: 1 in Features of AccuSharp Knife Sharpener Pre-Angled Tungsten Carbide Blades; Sharpens Double Beveled Edge Knives; Lightweight and Portable; Small Enough to Fit in Your Pocket; Easy to Use; Package Contents: AccuSharp Knife Sharpener AccuSharp 1002C: Knife SharpenerBlue Handle Diamond-Honed Carbide Blade