swing set kits do it yourself heavy duty help you create the perfect backyard A-Frame Structure to fit your needs. Our swing hardware is made of heavy-duty steel, sturdy and durable, green powder coating, anti-corrosion and anti-rust. classic design, precise dimension, Steady structure, easy to mount. Provide technical support at any time. Please feel free to tell us what we can do for you,we will reply in one business day.