Our Red Tide Spearfishing Floatlines are super strong and slide through the water with almost zero drag. They come standard with a heavy duty swivel on one end and a Tuna Clip on the other end. These speargun floatlines are cored with super strong spectra parachute cordage and have been proven over time to be the best spearfishing floatline value available. We have been crushing Tuna, Wahoo, Doggies and other great fish around the world with these floatlines for years. Choose from 10 meter, 20 meter, and 30 meter sizes. You will be 100% Happy with this purchase.