Our Quad Strap mounting system is amazingly easy and completely flexible. The four straps attach to an eyebolt on the fan frame, with a connector we include. The other end of the strap is attached to the ceiling structure with an eyebolt or by simply wrapping the strap around a beam or joist. The straps have a looped end for easy securement. You can mount the fan flat or at any angle to direct the airflow, by varying the length of the straps. The straps will not corrode, transfer vibration to the ceiling, or break as each strap holds at least 10x the weight of the fan, or 3x the weight of your mother-in-law. The straps will not corrode, transfer vibration to the ceiling, or break as each strap holds at least 2250 pounds, while our largest fan weighs only 122 pounds.