Sportsman's Warehouse has florescent orange and yellow bow fishing line that is rated at 300 lbs and is about the same size as plumb line at Home Depot. It is about $10 for a roll. I'm not sure how much is on the roll but it has to be way over 50 yards. I have been tempted to get some but I have braided nylon cord the same size as paracord and the yellow plumb line. I don't really need any.