JY-MARINE hammocksmade of 304 stainless steel, higher hardness, moisture-resistant, acid and alkali resistant, anti-rust, glossy and bright surface, non toxic, environmentally friendly and harmless. Solid design, abrasion resistant, strong load-bearing. They are thick and sturdy,good for Hammock Chair Hanging/Swing Hanging,! All parts are made of the best quality stainless steel. The easy-to-use kit lets you create a relaxation station using any secure structure, from wall studs to sturdy posts. In many instances forgiveness is better than permission when installing in apartments, dorms, parents house.