Extreme Max BoatTector Galvanized Steel Anchor Shackles feature hot-dipped galvanized steel and drop forged/weldless construction for maximum strength and optimal performance. The rounded design is ideally suited for work with multi-directional loads, particularly in marine anchoring applications. Extreme Max offers a comprehensive line of BoatTector products to protect your boat. Whether you need fenders, anchors, rope, or rigging, BoatTector has an economical, durable product.