K3 Brands Premium Horn for Boating, Sports, Safety. Loud & Effective Boat Signal & Shoreline Marine USCG Rated - Appropriate for Any Purpose - Non-Flammable LOUDEST & MOST EFFECTIVE AIR HORN AVAILABLE - Our horns have been tested to be louder and more reliable than the cheap knock-offs coming over from China. Don't take a chance on your safety - Demand dependable quality from K3 Brands FOR BOATING, SPORTS, SAFETY & SECURITY - Hundreds of uses from marine to sporting events, construction, event management to safety & security. What will you use your air horn for? FAST SHIPPING - MADE IN THE USA - Our Air Horns are proudly made in the USA by a dedicated team that has one goal in mind: Your complete satisfaction - 3.5OZ SHIPS PRIME, WHILE LARGER 8OZ SHIPS FAST FROM OUR WAREHOUSE - Ozone Safe & Non Flammable NON-CORROSIVE, STAINLESS STEEL DESIGN for Durability In & Out of Water 100% SATISFACTION GUARANTEED - If You Are Not Happy, Return the Horn for a Full Refund.