Hoopever heavy duty interlocking concealed flush mounting bracket Z hangers are often used by professional installers to hang heavy duty pictures and mirrors. The interlocking aluminium bars provide a secure fixing and spread the load over the wall. Features: High polished surface. Smooth surface without burrs. 24 inch flexible interlocking wall mounting bracket Z hanger can supports up to 160 pounds Easy install and easy to use. Specifications: Material: High strength aluminum alloy Dimension: 600 x 32 mm / 24 x 1.26 inch Thickness: 3 mm / 0.128 inch The Cleat Hanger Kit include: 1 Pair French Cleat Aluminum Z Clips 6 pcs short screws to attach to art 6 pcs long screws to attach to wall 6 pcs plastic expansion pipe Pro Tip: Take time to make sure the cleats are level on the wall and your art. The elongated screw holes allow for minor adjustment during installation. You may need a level ( I personally download one from mobile application)