DESC: Your serrated knives do lots of work for you in the kitchen and they usually can't be sharpened with regular sharpeners. With this easy manual sharpener, you can now keep your serrated knives in fantastic sharp shape. The angle guides eliminate the guesswork as your knife is guided through the conical red rollers. You serrated "teeth" on your knife will now have "micro-blades" for better cutting and reduced tearing. Serrated knives will glide smoothly through food and cut cleanly with less effort. Made with 100% diamone abrasives, the hardest known substance, it sharpens any metal alloy faster and more efficiently than conventional abrasives. Use this right or left handed and no need for messy oils or liquids. Your life just got easier and sharper in the kitchen.