Mantus Universal Deck Fill Lid Key (MAD KEY)

Mantus Universal Deck Key is a multifunctional tool that opens all types and sizes of deck fill lids, and shackles. The tool is truly

 universal, intuitive, easy to use and comfortably fits in your pocket. Mantus Universal Key is a stainless steel (316L) precision investment casting so it will not corrode or wear with time. Its the one tool every boat captain should have!