Package Contents: Each package contains 4 pieces 4-inch zinc-plated steel crossbar mounting brackets, 4 pieces 3/8-inch (1/8IP) lamp tubes (40 mm length), 4 ground screws, and 4 locknuts, for flexible use in various projects. Whether you are upgrading existing light fixtures or installing new ones, this versatile set provides the adaptability needed for different lighting configurations. Durability: Made from high-quality materials, these silver crossbar mounting brackets are built to last. Their sturdy construction ensures durability and long-term performance, ensuring your light fixtures stay securely in place. Installation: The kit includes all the necessary hardware for simple installation. Even ordinary installers can easily install light fixtures with minimal effort, ensuring a quick and efficient installation. 【Compatibility】: Our ceiling light mounting bracket is designed to be universally compatible with a wide range of light fixtures, including chandeliers and wall sconces.