These Camp Rudder Zinc Anodes, model 70-R4, are a must-have for any boater looking to protect their outboard engine. Made by the trusted brand Camp and designed with the manufacturer part number R-4, these anodes are a reliable choice for any boat. Suitable for use with a variety of outboard engines, these anodes are perfect for those looking to extend the life of their motor. Whether you're a seasoned boater or just getting out on the water, these Camp Rudder Zinc Anodes are a smart investment for your boat.