Premium Material: Made of high-quality iron with white zinc treatment, this material is rust-proof and corrosion-resistant, providing excellent support for hanging lamps and lanterns. Strong Practical Use: The round universal light fixture crossbar comes in four main shapes and sizes to accommodate most fixtures on the market; however, it is not adjustable. The adjustable crossbar butterfly comes with two screws to modify the length of the crossbar, while the crossbar fixture bracket offers flexibility by allowing rotation of the two crossbar brackets to fit different fixtures. Application: This recessed ceiling fixture crossbar plate serves as a universal component in various applications, including wall lamps, ceiling lamps, ceiling fans, pendant lamps, vanity lamps, and chandeliers. It is widely used in fixture installations. Easy to Use: The product includes all necessary accessories for quick and easy installation. The crossbar bracket is convenient for mounting on electrical junction boxes; please ensure size compatibility before making a purchase. Long Operating Time: There are 6 models available, labeled A1 to A6, which include round universal, adjustable butterfly and cross-shaped options. Choose the appropriate model based on your specific requirements.