Concave-convex design ensures precise measurements, accommodating both inches and metric units for accuracy. Versatile measuring tool suitable for fish, crabs, and various aquatic species, enhancing the outdoor experience for any angler. construction allows for easy handling and transportation, making it an essential tool for fishing trips. Foldable and portable design makes it easy to carry on boats or kayaks, allowing anglers to measure their catches conveniently wherever they go. material ensures and reliability, providing a dependable measuring solution for outdoor enthusiasts.