This ceiling is constructed from high quality metals making it heavy duty and able to sustain the weight of upto 100kg. It is then powder coated to prolong its lifetime and make it weather proof. very verstile and can be fixed onto ceiling & beams. the steel chain will attach to any suitable punchbag with 4 strands. the chain allows the bag to swing freely during use. all fixture and fittings are included with full intructions