Storage Bag Protection: Comes with a sturdy Oxford cloth storage bag designed to safeguard your self-hammering sand spike anchor from damage. Protecting against punctures caused by itself, this bag ensures safety for you and other items stored alongside. Built to Endure Seawater: Crafted from high-strength carbon steel galvanized (Q235A), our self-hammering sand anchor boasts seawater corrosion resistance. A zinc plating layer on solid carbon steel provides effective anti-corrosion protection, ensuring durability and impact resistance in both river and seawater environments, and is suitable for use in fresh or saltwater. Wide Compatibility, Secure Fastening: Our marine slide anchor shore spike easily fastens a variety of boats. It provides two convenient tie-down loops for hassle-free knotting with dock lines or boat ropes. Choose between a loop attached to the upper end of the handle or one on the side to secure your boat, motorboat, lifeboat, or rowboat. Long Spike, Secure Anchoring: The 38.8"/985 mm long needle structure, with a lower part measuring 21.6"/550 mm, ensures a strong and stable grip, weighing 9.5 lbs/4.3 kg for deep insertion into shallow water areas devoid of rocks, silt, or water grass. Sand Spike Boat Anchor: Our slide sand anchor features a self-hammering structure that swiftly penetrates soft and hard sand, effortlessly securing your boats or pontoons without additional aids.