The Athearn HO 04321 TM UND SP Type DMY locomotive is an unassembled kit in a 1:87 scale with a Bo-Bo wheel configuration. It is black in color and made of plastic, designed to operate on a two-rail system with analog control. This locomotive is a C-9 Factory New-Brand New item and belongs to the Transportation theme for model railroads and trains. The product is a DC-powered locomotive by Athearn, suitable for HO gauge layouts.