Anchors keep boats free from rocks, surf, and hold a temporary position. As the boat pulls on the anchor it generates resistance by digging into the seafloor. When the seafloor is rocky the anchor can't dig in, rather sticking to a protruding rock. Anchoring to a rocky seafloor can be difficult, using a heavier weighted anchor can help achieve a proper seat. Professionally spliced dock lines in a double braid, three-strand, and 12 strand lines in multiple diameter and lengths. Find solutions for all your docking needs. Dock Boxes, Lock tools, and supplies in a durable and strong dock box! Dock Cart & Wagon, boat hooks & mounts either fixed or telescoping! Dock Hardware, cleats of all shape and sizes, rub rail keeps your boat free from gouges and scrapes.