Superb Divers Safety Flag on sectional extending light, snaps together, easy deploy pole that's 4 ft 6 inches long. Bright Yellow to attract attention measuring 18 by 15 inches. Supplied with a good quality wrist lanyard and A SAFETY WHISTLE & 2 Bungee Cords to facilitate easy attachment to your Dive Cylinder. Rated as the best low cost safety device as tested by the RNLI - enables dive boats and potential rescuers to see you from miles away. An essential safety aid, so important that some dive charter boats now insist that all divers carry a flag - just in case!