These HO structure kits are perfect for modelers everywhere to enjoy on their layouts in almost any setting. Each of these kits is molded in appropriate colors with realistic details and assembles easily using plastic compatible glue. Transformer: Can be used as a detail outside of an industrial building or also as a freight car load. Complements the substation. Approx. finished size: 4 9/16" x 3 3/4". (2 pcs. per kit)