Industrial / Retail Unit Base KitWills OO HO Industrial Retail Unit Base Kit A truly versatile kit that can be made up in many different formats. The door window and shutter positions can be swapped around, or left as blank wall. It is easy, for example, to place them in the unit ends, where the shutters could allow trains to enter to make the unit into an EMU DMU Diesel Depot. This kit can be made up in full or half relief, and an extension kit (SSM315) is available to make it