The Myerchin Marlinspike was created over a quarter century ago. It is crafted from pure stainless steel. It incorporates a tip that slides easily between strands of synthetic line in order to undo the tightest knots. The "eye" of the spike is used for weaving line and loosening small shackles.
Please rinse the spike in fresh water after using it in salt water. Any surface oxidation (rust) can be easily removed with a stainless steel polish.