Boaters and divers, this is the official flag you need for safe diving operations! The bright red flag with white diagonal stripe is instantly recognizable as the universal 'divers below' warning. At 20x24 inches, it meets size requirements for displaying from your vessel when people are in the water scuba diving or snorkeling. The removable stiffener is genius - it keeps the flag visible and flying properly when deployed, but you can remove it for compact storage. The sewn pockets hold the stiffener securely in place, and durable brass grommets resist corrosion from saltwater exposure. Installation is quick and easy - you can fly it from your boat, a float, or buoy. When you're done diving, just collapse it down for easy stowage without taking up much space. This isn't some cheap, flimsy flag either - the vinyl material holds up to sun and weather exposure, and the construction feels solid. Whether you're a recreational diver or running diving charters, having this proper diver down flag isn't just about following regulations - it's about keeping everyone safe in the water. The quality is exactly what you'd expect from Seachoice, a brand that serious boaters have trusted for years.