A quick and easy detail for your HO layout, the SceneMaster Square Hay Bales are perfect for barn, fields, or as a load for trucks, boxcars and the Large Farm Trailer (#949-4193), each sold separately. This set comes with 36 flocked bales, ready to add to new or existing scenes. Each measures 3/16 x 5/16 x 7/16" .5 x .8 x 1.2cm.