The swing hardware is made of high-quality 304 stainless steel,sturdy, safe, and can withstand harsh weather and long-term use, and is the perfect swing frame for all indoor or outdoor swing products. Innovative design: Supports 180 ° back and forth swing, making it more flexible and versatile for hanging any other heavy objects on elevated frames Easy to install: Pre drill holes on wooden or metal beams, place two nuts and washers at the top and tighten them when installing on wooden beams; When installing on a metal beam, first place the nut and washer at the top, then place another nut and washer on the other side of the metal beam and tighten it to complete the installation. Safe and reliable: The heavy-duty commercial quality swing hook is suitable for children and adults, with a total weight limit of 660 pounds for 2 hangers Application: Can be used in hammocks, suspended trainers, Olympic rings, gymnastics rings, chair gyms, gym swings, sandbag swings, sandbag rocking chairs, yoga rings