This handy and attractive apparatus allows you to open and close a transom window without the use of a pole and hook. Mounted along side the door or window frame, it's easily accessed and operated. Made of solid steel. The overall length of the operator is 47" and the rod is 3/8" in diameter. The wall mount adjustment bracket measures 2 7/8" tall by 1 5/16" wide. The window mounting bracket measures 2 11/16" tall by 1 7/16" wide. This operator works with windows hinged at the top or at the bottom.