Gullsweep® 3' Anodized Aluminum Bird Deterrent. Keeps gulls and other sea birds off your boat by continually sweeping the area where birds land. Durable anodized aluminum, stainless steel and plastic. Very resistant to salt water. Easily mounted on hard or soft top. Rotates in the slightest breeze and cover a 3' span. Folds for easy storage. Ideal for installation in tighter locations where 6' clearance is not available. Better for docks, walkways, tabletops, screens, porches, and rooftops.