The Mini Signal Horn Kit is ideal as the primary or backup signaling device on your boat. Use it to alert nearby boaters to your location in poor visibility and in emergency situations. The gas in the canisters is 100% non-flammable and ozone safe, and the trumpet is made of high-impact plastic. Mini Signal Horn is committed to delivering quality marine accessories and OEM replacement parts to satisfy fishing, boating and watersports enthusiasts worldwide. Mini Signal Horn is run for and by boaters, offering a wide-ranging product line while remaining affordable.