... , 5mm hollow sheet Bracket: Alloy PlasticJoint: Aluminum Fixing BarOthers: Set Screw, Countersunk ScrewBracket: The bracket is made of special engineering plastics ... resistant, anti-aging, anti-corrosion, easy mantainance, easy installation, low noise, UV-protectionInstallation toolsPercussion drill, Hammer, Screw Driver, silicon gel(better) Installation InstructionPackingCarton