This Dual Eyelet Swivel is made of 316 Stainless Steel and has a size of 7/16 inches in diameter and 5 inches in length. It is designed for use with hooks and eyes and fasteners and hardware in various industrial applications. The system of measurement is in inches, making it easy to specify and measure the size of the swivel. This high-quality swivel is perfect for those in the business and industrial field who need a reliable and durable solution for their fastening needs. Safe Working Load of 770 Lbs. One inch inside Diameter M12