Perfect for the inland coastal boater who seldom travels offshore, this flare kit includes 4 aerial alert signals. These self-contained Skyblazer II alert signals are bright, safe, waterproof, and they float. USCG approved for day/night use. Reach an altitude up to 450' with a 7 second burn time. Provide 16,000 candela of brightness. The 4 signals come packaged in a resealable plastic bag. Shipped ground only.