This automatic fishing reel is great for docks, boats, or bank lines because the hook is set without you being there. It is ideal for survival situations because you don't have to burn calories bobbing a lure or waste with a pole in your hands. It also works as a land animal snare. Just bait it, toss it in and, once triggered, it will yank those scaly suckers out of the water. Galvanized reel features stainless steel springs. Dimensions are 3in x .5in. Weighs 2oz. Pack of 3. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.