DescriptionThere are several complications that will be present if you have a dull knife. First, the knifes will become slightly ineffective. The level of effectiveness will be determined by the dullness of the blade. If you have allowed it to dull significantly, the might not even make the necessary cut! In the same sense, the will become a little more dangerous when the has been dulled. So, how can you tell if the is dull? First, you should take a close look at the blade. Hold it a decent distance away from your face, but look at the blades very carefully. Do you see lesions and small indentions? Does the look slightly worn and uneven? If you spot any of these deformities, you have a dull and it is time to find a sharpener for your needs!Our sharpener is one of the easiest to use.Features- Color: Red and Black. - Material: ABS and metal. - Size: 19.3x5.2x6.3cm / 7.6x2x2.5inch. - Super Design: Specially designed sharpening slots gives you the power to sharpen and hone dull knives in no time to produce a smooth, finished polish. - Razor-Sharp Results: Simply place this 2-stage sharpener on a flat work surface and hold the comfort-grip handle with one hand and the handle with the other to sharpen. - Fast & Safe: A few pulls through the sharpener to restore any to a precision edge. No tedious grinding and no worries about damaging your expensive knives with handheld stones. Non-slip rubber feet and ergonomically design keep your hand safely away from the moving throughout the sharpening process. - Multi-function: Suitable for throwing knives, steak knives, pocket knives, steel knives, outdoor knives, Serrated knives, Diamond knives, Tungsten knives, tactical knives, kitchen shears, kitchen scissors and kitchen set.Instructions- Clean the with the water or wiper and dry it after use. - Do not put the sharpener into the dishwasher or water. - Do not overpower and back and forth when grinding.