Upgraded Kitchen Knife Sharpener, Ulwae 3-Stage Knife Sharpener to Restore Non-Serrated Knife Blades Quickly, Safely, and Easy to Use for Kitchen, Camping, Hiking and Household Use Price: $12.99 - $9.99(as of Sep 23,2022 07:39:56 UTC – Details) This knife sharpener does not work with the following items: 1. Ceramic knives. 2. Scissors. 3. Scissors. 4. Serrated knives.