At Block Knife Sharpener, we offer high-quality, American-made knife sharpeners built to last. Our patent sharpener, known simply as “Block,” is designed to meet the needs of every kitchen, whether you’re a professional chef or a home cook. Made in America, our sharpeners have a lifetime guarantee against factory imperfections, ensuring you can rely on them for years. This sharpener has a unique flex design made in the handles design that allow the honing rods to adjust to your knifes cutting edge.