These 21 by 24 inch heavy duty anti-sail brackets are made of stainless steel, ensuring durability and longevity. Designed to fit most makes and models, these brackets effectively prevent sail and vibration, providing stability and security. Each bracket is sold individually and is available in a standard size of 21 inches by 24 inches. With their practicality and heavy-duty construction, these anti-sail brackets are a reliable solution for securing various objects in place.