[Reliable Material] The sturdy hook is made of high quality stainless steel, which is anti-rust and anti-corrosion. The solid stainless steel structure can provide higher strength. [Strong four-way fastening holes] The hook is designed with four holes, which is safer than the two-hole bracket, improves durability and stability, and has a precise welding process with a maximum load of 500 kg. [Application areas] Hammocks, aerial yoga, hanging chairs, sandbags, swings, solar sails, crystal lamps, cargo lifting, truck and boat traction, balcony clothes chain, punching bags, etc. . [Installation Note] The hook hanger is suitable for installation on concrete ceilings and wooden beams; it is not suitable for plasterboard, ceilings, clay walls or other fragile building materials. Product Description Aerial Yoga, Sandbags , fixed swing, crystal light hook, cargo lifting, vehicle and boat pulling. Specification: Material: stainless steel Net weight: 0.35kg Product size: Diameter 90mm Base plate thickness 3mm The overall height is about 40mm Expansion screw size: 6*70 (requires drilling with M10 drill bit) Configuration standard: one steel load-bearing hanger plate stainless steel + 4 expansion screws Did you receive? 2 stainless steel disc hooks 8 stainless steel burst screws M6*70mm 2 M7 stainless steel carabiner belt nuts