Modern Forms Fan Downrods should only be used with Modern Forms Ceiling Fans. Our downrods are manufactured to work with Modern Forms Smart Fans only, failure to use with a Modern Forms fan only can result in damage to your fan. Modern Forms downrods are 3/4 in. outter diameter and can be used to extend your Modern Forms ceiling fan height. Downrods are available in 12in, 18in, 24in, 36in, 48in, 60in, and 72in. Downrods cannot be used with "Hugger" or "Flush Mount" ceiling fans. Available in a variety of finish options to match your ceiling fan finish. All Modern Forms Downrods are UL, cUL, CSA listed and comply with global safety standards. Modern Forms downrods can be joined together using a downrod coupler (SC-xx) to make lengths greater than 72in. All Modern Forms downrods have a single threaded end on the motor side and can be shortened in the field by cutting the un-threaded side, for instance if you need a 10in downrod you can purchase a 12in and field shorten it by 2in.