Accurate depth calculation: The Fishing Line Depth Finder accurately calculates the length of fishing line you have let out, enabling you to set your lure at the correct depth to target fish effectively. Reliable construction: Made with an impactresistant nylon ABS housing, this line counter is built to last, providing protection against saltwater and durability in harsh fishing conditions. Large and clear display: Features a large threedigit depth reading in meters, easy visibility and readability. It displays depth in meter steps down to 999 m for precise measurement and control. Convenient and easy to use: The line runner is designed to be strong and reliable. The comfortable rod attachment system enables quick and easy attachment to your fishing rod, saving time and effort. Practical use scenarios: Offshore trolling for deepwater species such as tuna or marlin, keeping your lure at the target depth for better strike opportunity. Freshwater deepwater jigging or trolling in large lakes, maintaining bait at a consistent depth to locate active fish. Saltwater fishing in challenging conditions where durability and reliable line measurement help manage line out during long runs. Specifications and attributes: Depth readings: threedigit display in meters, up to 999 m. Display clarity: large, easytoread depth readout. Housing material: impactresistant nylon ABS. Attachment: comfortable rod attachment system for quick installation. Line runner: strong and reliable for durable performance.