The Prime Line U 9897 Security Door Guard Swing Bar is a sturdy and reliable hardware solution for swinging doors. Made of brass, this door opener features a unique bar shape and a compact design with dimensions of 1.13 x 8.44 x 3.81 inches. It requires no battery for operation, making it a convenient and hassle-free option for commercial and industrial settings. The Prime Line brand is known for quality products, and this swing bar is no exception, providing durability and security for your swinging doors.