Falcon Sports Air Horn 5.5 oz. can. The economical Falcon Sports Horn is ideal for coaches, sports officials, camp counselors, lifeguards, and referees. It also meets the needs of sports enthusiasts. The Sports Horn is individually hand-tested for reliability and meets U.S. Coast Guard requirements for boats up to 65 feet. The Falcon Sports Horn is 100% ozone safe, flammable propellant. The rugged, high impact plastic trumpet is guaranteed unbreakable. Trumpet is removable for easy transport and storage. Can contains 5.5 oz. Refills readily available but sold separately.