Changes easily from knife to harpoon by slotting a green shaft with the sharp hawksbill end of the handle and tying the knife in, or by threading the accessory blade holder onto a standard broom handle. The hollow handle blade holder features a liquid filled compass in the cap with a compartment for storing fish hooks, line, matches, and other survival essentials. The Harpoon comes complete with a quality nylon belt sheath. Designed by custom knife maker Jerry Hossom. Patents Pending.