【Efficient Knife Sharpening】One end features a 400-grit diamond surface for sharpening, while the other boasts a smooth ceramic surface for polishing. 【Multi-Angle Base】Our base offers 4 angles to meet diverse needs. The 12° and 15° angles ensure razor-sharp precision, ideal for tasks like sushi and high-carbon steel knives. Meanwhile, the 20° and 25° angles provide sturdy edges, perfect for robust kitchen cutting tasks and more. 【Savor Sharpening】Compared to conventional sharpening stones, our rolling sharpener provides a more effortless and comfortable experience, seamlessly blending functionality with refined craftsmanship. 【Gift Box Packaging】Perfect for chefs, collectors, and outdoor enthusiasts. Ideal gift for friends and family, featuring high-end packaging. 【After-Sales Support】We're committed to enhancing product quality rigorously, ensuring a better shopping experience for our customers. For any issues with your order, reach out to us anytime. We'll respond within 24 hours and assist you in resolving the problem. Rolling Knife Sharpener Tool Kit, Multi-Angle Magnetic Roller Sharpeners for Kitchen Knives, Diamond&Ceramic Knife Sharpening System Set, Offers 12&15&20&25 Degree Sharpening