ZINC 2 13/16" Diameter Rudder Button Quantity in Basket: None Code: 194-CMR02 Price: $12.49 Shipping Weight: 1.00 pounds Quantity: Zinc 2 13/16” Diameter Rudder ButtonMade from mil-spec mil-a-18001 metal alloy Electrolysis protection for rudders. Permanent ground connection is assured. 12725