They also make a great crossover piece for the cast iron or hay trolley collector. Many more pics on Facebook / Cajun Hay Trolleys. The item "Barn Door Rollers Hangers Farm Hay Trolley Carrier Cast Iron" is in sale since Sunday, May 01, 2016. This item is in the category "Collectibles\Tools, Hardware & Locks\Tools\Pulleys, Block & Tackle".The seller is "millieroxie" and is located in Crowley, Louisiana. This item can be shipped to United States.