Rail Mount Ring Buoy Bracket 
The Sea-Dog® Rail Mount Ring Buoy Bracket can be used on 7/8" or 1" tubing or mounted directly to a flat surface. Comes complete with all necessary hardware. Made from marine grade stamped aluminum and powder coated for a long-lasting finish. 
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.