Material quality: The sturdy frame brackets are made of high quality iron, safe and reliable, not easy to deform, crack or break, the recessed brackets are reusable so you can easily change your design, create a new wall art look anywhere.Hidden design : The screw holes on the hanging rail has a recess effect, the Z shape is the easiest to connect hidden fasteners, make your picture frame fit perfectly on the wall without leaving unnecessary holes. Easy to use: On the wall, you only need a drill and with a screwdriver, fasten the two the shackles on the wall and objects in opposite directions [up and down), then connect them to the other. Wide use : the z-mount bracket is not only suitable for mounting mirrors, photos and whiteboards, but also works of art, wall clocks, shelves, on shelves , cabinets, whiteboards, garage tools, etc. It can also be used as a loop for hanging headboards. , to connect sectional sofas and other furniture.Package contents: The heavy duty mirror mounting kit contains 2 heavy frame mounting hooks, 6 self-tapping screws, 6 self-drilling screws, 6 expansion anchors, the combination is enough to meet your needs. You do not need to buy other accessories.