I wish I could take credit for these. The long iron is fixed to the telephone pole, goes up 30 to 35 feet. The two towers could be used to throw to two different fields. As noted, the towers are battery operated.Charlie - any details on your towers? Look simpler than what we have at our club and appear to be able to be built very reasonably with some volunteer labor. Looks like there is a angle iron rail to hold the carriage? Any closer pictures is appreciated. Thank you.