SeaSense 5lb Grappling Anchor, Galvanized Iron The Unified Marine Seasense Grappling Anchor is 5 pounds of galvanized iron More holding power per pound The grappling anchor is great for all small boats including dinghies, inflatables, canoes and PWC The ability to quickly fold and unfold in seconds and stow in a very small compartment makes the grappling anchor a good choice