1Application: This socket is specifically designed for use with 1/2 inch diameter shank oarlocks, suitable for boats, yachts marines, and RVs. 2316 Grade Stainless Steel: Crafted from high strength 316 grade stainless steel, these oarlock sockets offer superior durability and strength, waterproof and rugged. 3Mirror Polish Finish: The rowlock socket features a mirror polish finish that adds an aesthetic appeal to the boat, with plastic bearings to prevent rattling while oarlock in use. 4Durable and Long Lasting: Built to withstand the harshest environments, these oarlock sockets are designed for long term use, suitable for rough weather and marine applications. 5Superior Rust Protection: The oarlock is ideal for saltwater or water environments, where they can effectively withstand the damaging effects of salt, water, and other elements.