The state-of-the-art integrated cast iron process, coupled with rugged hardware made of heavy steel, ensures that it will remain solid for a long-time to use. The unique 100% welded joint is better than the traditional spot welding technology and the green powder coating provides double protection against bad weather, so that the swing is still bright in the 4 seasons, never rust. Custom-made vinyl washers on both sides of the swing hanger effectively reduce the noise of rotation, resulting in a peaceful and comfortable swing experience, so that you can enjoy a leisurely time with only the sound of the breeze in your ears. The innovative lock nut design ensures that every swing trip is smooth and hassle-free. A comprehensive range of mounting accessories, including screws and expansion bolts for wood and concrete, can be easily adapted to ceiling, sandbags, porch swings, gymnastics rings, yoga swings, boxing equipment, hammocks and swing chairs to meet your diverse needs. The installation process is quick and easy, even on your first try. Includes 8 competitive screws, 8 expansion bolts, 8 washers and 4 oval hooks, pre-drilled design for use with the impactor for smooth installation. Safety is always our most important consideration. Easily carries up to 10,000 lbs. of weight, far more than the average porch swing hook, without worrying about any safety hazards.