Extreme Max BoatTector Stainless Steel Anchor Shackles feature marine grade stainless steel and forged 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.