[Robust Match]: Yeuri our hooks are made of high quality 304 stainless steel, which is not rusty, non-corrosive and has high hardness. With a load capacity of over 100 kg, it is suitable for children and adults and all other living spaces. [For concrete and wooden walls]: Contains 4 metal screws and 4 plastic screws, you can use them for concrete ceilings and wooden ceilings. But it is not suitable for plasterboard ceilings, mud walls or other soft building materials. [Wide Application]: Suitable for indoor and outdoor use, very suitable for hanging chairs, chandeliers, swings, seesaws, hammocks, sandbags, slings, yoga towels, slings, etc. [Easy to install]: All d First, prepare two pre-drilled holes for screwing to wooden or concrete beams. Features: Loadable up to 100 kg Stainless steel 180 rotation design Carabiner with rotating wire Strong and safeMultifunctional Wear-resistant Corrosion resistant Delivery quantity: 1 piece Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store