All swing hardware is made of 100% permanent rust-proof food grade SUS304 stainless steel, high quality industrial construction, perfect swing brackets for any indoor or outdoor swing set products, including porch swing set, swing set, jungle gym hammock, suspension trainer, Olympic rings, gymnastic rings, gymnastic rings, gym swing, gym swing, sand. bag swing, punching bag swing, yoga ring, etc. Special 2-in-1 Design: The innovative 2-in-1 bracket for 180° back and forth movement, can be used more flexibly and widely, to hang any other heavy objects from a hanging bracket. Easy Installation: Direct installation on wooden beams, cedar wood, rafters, 2-in-1 design and can be installed in minutes. Safe and Secure: The commercial-grade heavy-duty hooks are designed for use by children and adults.