Vanadium steel, technical locking curve, and Coastal PTFE coating. Tested, modified, and improved by the best fishing guides in tropical regions such as Madagascar, Australia, or Sri Lanka, these Kaptain 6X hooks are a safe choice for your next trip. The Coastal PTFE coating, a worldwide exclusive from VMC, allows for incredible penetration speed while being corrosion-resistant. Easy Eye technology in sizes 3/0 to 6/0: forged and polished eye for easy passage through broken rings.