Features: *Functions: 1.Aside from roadside emergencies, you can also use road hazard kit in: 2.Home emergencies especially during hurricanes, earthquakes and other calamities 3.Camping and hiking 4.Outdoor lighting 5.Vehicle traffic warning 6.Police road mark 7.Water surface boat flare kit and marine activities 8.Identification of Emergency Vehicle 9.Helicopter landing zone 10.Large and heavy vehicle transport warning 11.Search and rescue operations 12.Temporary runway identification *Hook design The hook on the product bottom with strong magnetic and simple installation is not easy to fall off. *Long service life .