Less ThanstrongGreater ThanFox 40 Micro Marine Whistle with Breakaway Lanyard – Dual PackLess Than/strongGreater ThanLess Thanbr /Greater ThanThe Fox 40 Micro Marine Whistle with Breakaway Lanyard – Dual Pack’s design is compact, small and flat. It is pea-less, has 3-chambers that delivers 110dB whistle with no pressure points; the exceptional clear sound can be heard over the marine and other environment noise. It is made out of plastic, has no parts that can rust or corrode, plus it is resistant to ultraviolet and saltwater. And you get 2 of them. The Fox 40 Micro Marine Whistle with Breakaway Lanyard – Dual Pack comes with the non-corrosive stainless steel split ring and breakaway lanyard that releases with tension 36 in. in length. The lanyards are now 3/16″ rope-style, woven with the Fox 40 brand, and it includes a J-hook and button-style spring-loaded adjustable cord lock. The Micro Marine Whistle is great to have with you in all types of watercraft applications and water sports activities, and in this package you get two.