Heavy Duty & Long Lasting Swing Hanger: Premium 304 Stainless Steel Material, high hardness and more sturdy for 1000 Pounds capacity; No Rust and No Corrosion for long-term use.Industrial Grade & Lock Nut Design: This Anti-Loosening Nut provides extra security, Perfect swing hooks for all swing set products indoor or outdoor.Widely Used in Wood and Concrete: Our swing hangers provide 2 screws for wood and 2 expansion bolts for concrete, Perfect for Ceiling, Punching Bag, Porch Swing, Hammock, Swing Chair, Ring, Yoga Swing, Boxing Equipment, etc.Easy to Install: You don't need to buy additional fastening screw accessories, the product can be quickly installed and used. TIPS: If you need an installation guide, we have provided instructions in the picture.360° Rotatable Ring & Silent Design: Our swing hangers include Nylon Wear-Resistant Gaskets on both sides to Prevent direct Friction and Noise; 360° Rotated freely, perfect for Punching Bag and some Yoga exercises.