High Quality Work: All parts are made from high quality stainless steel and use precision welding technology for an impressive finish. This product is resistant to rust, wear and corrosion, making it ideal for hanging heavy equipment. Can be easily installed on solid concrete ceilings or walls. Versatile: Heavy duty ceiling hook. Can be used for hanging chairs, aerial yoga, sandbags, swings, hammocks, trainers, yoga straps, gymnastics rings and shade sails. Safe and Stable: It can support a load of 450 kg and can rotate 360, allowing the chair to rotate in any direction. It is equipped with a safety lock, sufficient to meet your application in any usage scenario. Easy to Install: Mark the installation location on the ceiling and drill holes holes, then fix with screws, installation can be easily completed indoors or outdoors.