Boating Essentials - Cast Iron Hybrid Anchor - 10 lb. - BE-AN-50150-DP. This 10-pound hybrid anchor from T-H Marine is constructed of heavy-duty cast iron, ideal for boaters who value strength and durability. The two large flukes and swiveling shank provide a quick set and exceptional holding power, making the anchor suitable for most bottom conditions.. Features:. Weight - 10 lb.. Heavy duty cast iron construction. Two large flukes provide exceptional holding power. Works in most bottom conditions. Swiveling anchor shank for quick set