Having for when you are on a Spear Fishing Safari can make the difference between a great hunting day and one that you wish you could forget. They always have items in their save-a-dive kit to protect themselves against accidents. This line of heavy duty Spear gun is specifically-designed especially for spear-fishing. Mares Diamond lines are made of 100% Dyneema polyester with HT fabric covering it. Dyneema is an ultra high molecular weight polyethylene fiber that is 15-times stronger, 7-times lighter steel wire than steel wire, and floats in water. Dyneema’s hydrophobic line is waterproof and does not absorb water, which means it will stay light when working underwater. This line is also chemical-and-uv resistant.