Being a safe diver is important more and more people are boating each year and there is increased watercraft traffic in our favorite dive sites. If you dive from a Kayak just letting your boat be the signal devise that someone is around is not safe enough. You need to fly a dive flag to keep people away from your area. This Nylon 14" X 16" Dive Flag comes with pole so it is always flying for positive identification that divers are below. Flag is easy to slip onto.