If you're serious about survival, then you know that a good knife is a must-have tool. And when it comes to knives, the Smith's Sharpeners 4.5in Flex Blades are some of the best in the business. Made from 420 stainless steel, these blades are serrated and built to last. The textured plastic grips make them easy to hold, even in the most challenging situations. And when you're not using them, the blade protector keeps them safe and sound. Hang them up for easy storage. Whether you're filleting fish or carving wood, the Smith's Sharpeners 4.5in Flex Blades are the perfect tool for the job.