The Ikaros Buoyant Smoke is designed for daylight distress signaling purposes on ships, lifeboats, liferafts and recreational vessels. The case delivers a dense orange smoke for over 3 minutes while floating in the water. The orange smoke can be seen from great distances, which increases your chances of being spotted. The case is made of corrosion resistant steel and has clear and simple instructions. Remove the red top lid, pull the loop and throw the signal into the water.