The Royale Decorative Rod Series combines elegant taste, sophisticated styling and detailed craftmanship. The Royale Crystal Rod add the perfect touch to any window in the home or office. The Diameter of the electro plated metal rod is .75 inches and easily adjusts telescopically to fit most window sizes. The set comes complete with matching, metal brackets and hardware suitable for wall or ceiling mounting. Brackets can be adjusted to extend between 4 to 4.5 inches. Tools required for installation: screwdriver and drill.