One Of The Oldest And Most Distinctive Pieces Of Nautical Equipment - Used to pass commands Excellent Tone and Pitch - it doesn't need any tuning. All notes are crisp, clean and loud. MARITIME NICKEL-PLATED WHISTLE - The MIL-TEC Nickel-Plated Boatswain Whistle is a classic maritime signaling device designed to deliver loud, clear signals essential for communication on ships and boats; excellent Tone and Pitch - it doesn't need any tuning: can be used to issue commands, alert crew members; the whistle's effective sound projection makes it a valuable tool for safety and emergency situations, where it can be used to signal for help or alert others in a variety of settings DURABLE MATERIAL - The whistle is constructed from brass, known for its excellent acoustic properties and durability. Brass is a metal alloy of copper and zinc, prized for its strength, resistance to corrosion, and its ability to produce a clear and resonant sound; the brass is covered with a nickel plating, which provides a sleek, shiny finish while enhancing the emergency whistle's resistance to tarnishing and corrosion COMPACT DECK WHISTLE - Measuring 5 inches in length and 1 inch in diameter, the deck rescue whistle has a compact yet substantial size; Its dimensions make it easy to handle and carry, while still being large enough to produce a powerful sound; the size is ideal for maritime signaling, ensuring that it can be grasped comfortably and used effectively in various conditions LIIGHWEIGHT PORTABLE WHISTLE - Weighing just 0.8 ounces, the maritime safety is lightweight and portable; this minimal weight ensures that it can be carried effortlessly on a lanyard or keychain without adding significant bulk; despite its light weight, the Mil-Tec Boatswain's Whistle is robust and capable of producing a clear, loud signal O-RING EASY HOOK - The MIL-TEC Nickel-Plated Boatswain Whistle features an O-Ring Easy Hook design, which enhances its functionality and convenience for users by providing a simple and effective method for carrying and storing; the durable O-ring allows for secure attachment to lanyards, keychains, or hooks, ensuring that the maritime whistle is always accessible and ready for use