The StopGull Air is the ultimate device to deter seagulls and coastal birds from landing on your boat. Its 7.5' diameter arms work with a light breeze and can withstand winds in excess of 60 mph in its fully extended state. With its improved swivel system and securing device, there is no need to remove and/or store the StopGull Air after its installation. StopGull Air is safe, effective and versatile. With its 5 different mounting options (sold separately), it can be attached to different areas of your boat where the seagulls may rest.