Tecnoseal Rudder Anode - Zinc - 2-13/16" Diameter. 84" Height: 0.43" Weight: 0.87lbs Full size and weight Rudder Each includes Stainless Steel hex nut and socket cap screw The captive hex nut is a great feature for underwater installations Specifications for Tecnoseal R2 Rudder Anode: Manufacturer: Tecnoseal Color: Zinc Package Contents: Tecnoseal R2 Rudder Anode Tecnoseal R2: R2 Rudder Anode - Zinc - 2-13/16" Diameter