INNOVATIVE REINFORCED DESIGN: Innovative in the swing set brackets support force point to add a triangle hardware, the reinforced structure strengthened the legs and beams. Stronger load-bearing capacity, no deformation. INSTALL: We recommend using two kiln-dried 4x6 120" top beam (true size 3.7" x 5.7" x 120") and two 4x4 96" (true size 3.7" x 3.7" x 96") side support legs to build a basic A-frame. ALL HARDWARE INCLUDED: Includes one middle swing set brackets, 16 wood screws, 16 metal spacers. Wood not included. HIGH QUALITY STEEL WITH POWDER COATED: The metal surface of the Swing Set Brackets has powder coating, excellent durability, ruggedness and corrosion resistance. Can resist wear and scratches. The most advanced laser welding technology, not only very strong but also very beautiful.